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8668479 = 32889493
BaseRepresentation
bin100001000100…
…010100111111
3121022101220210
4201010110333
54204342404
6505443503
7133452351
oct41042477
917271823
108668479
114990836
122aa0593
131a467a1
1412190d1
15b63689
hex84453f

8668479 has 4 divisors (see below), whose sum is σ = 11557976. Its totient is φ = 5778984.

The previous prime is 8668459. The next prime is 8668483. The reversal of 8668479 is 9748668.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8668479 - 211 = 8666431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8668459) 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 3 ways as a sum of consecutive naturals, for example, 1444744 + ... + 1444749.

It is an arithmetic number, because the mean of its divisors is an integer number (2889494).

Almost surely, 28668479 is an apocalyptic number.

8668479 is a deficient number, since it is larger than the sum of its proper divisors (2889497).

8668479 is a wasteful number, since it uses less digits than its factorization.

8668479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889496.

The product of its digits is 580608, while the sum is 48.

The square root of 8668479 is about 2944.2280821974. The cubic root of 8668479 is about 205.4223219184.

The spelling of 8668479 in words is "eight million, six hundred sixty-eight thousand, four hundred seventy-nine".

Divisors: 1 3 2889493 8668479