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8872989 = 34762929
BaseRepresentation
bin100001110110…
…010000011101
3121200210110020
4201312100131
54232413424
6514102353
7135263526
oct41662035
917623406
108872989
115010454
122b7a9b9
131ab88b8
14126d84d
15ba4079
hex87641d

8872989 has 8 divisors (see below), whose sum is σ = 12082560. Its totient is φ = 5789376.

The previous prime is 8872979. The next prime is 8872991. The reversal of 8872989 is 9892788.

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

It is not a de Polignac number, because 8872989 - 24 = 8872973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8872909) 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, 31324 + ... + 31605.

It is an arithmetic number, because the mean of its divisors is an integer number (1510320).

Almost surely, 28872989 is an apocalyptic number.

It is an amenable number.

8872989 is a deficient number, since it is larger than the sum of its proper divisors (3209571).

8872989 is a wasteful number, since it uses less digits than its factorization.

8872989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62979.

The product of its digits is 580608, while the sum is 51.

The square root of 8872989 is about 2978.7562840890. The cubic root of 8872989 is about 207.0252483847.

The spelling of 8872989 in words is "eight million, eight hundred seventy-two thousand, nine hundred eighty-nine".

Divisors: 1 3 47 141 62929 188787 2957663 8872989