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9668789 = 135771289
BaseRepresentation
bin100100111000…
…100010110101
3200012020002022
4210320202311
54433400124
6543122525
7145116614
oct44704265
920166068
109668789
115504339
1232a3445
132006ba0
1413d987b
15caec5e
hex9388b5

9668789 has 8 divisors (see below), whose sum is σ = 10438680. Its totient is φ = 8902656.

The previous prime is 9668783. The next prime is 9668819. The reversal of 9668789 is 9878669.

It can be written as a sum of positive squares in 4 ways, for example, as 4169764 + 5499025 = 2042^2 + 2345^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9668789 - 24 = 9668773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9668789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9668783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6857 + ... + 8145.

It is an arithmetic number, because the mean of its divisors is an integer number (1304835).

Almost surely, 29668789 is an apocalyptic number.

It is an amenable number.

9668789 is a deficient number, since it is larger than the sum of its proper divisors (769891).

9668789 is a wasteful number, since it uses less digits than its factorization.

9668789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879.

The product of its digits is 1306368, while the sum is 53.

The square root of 9668789 is about 3109.4676393235. The cubic root of 9668789 is about 213.0381396286.

The spelling of 9668789 in words is "nine million, six hundred sixty-eight thousand, seven hundred eighty-nine".

Divisors: 1 13 577 1289 7501 16757 743753 9668789