8479657 has 8 divisors (see below), whose sum is σ = 8714880. Its totient is φ = 8247600.

The previous prime is 8479649. The next prime is 8479699. The reversal of 8479657 is 7569748.

It is a happy number.

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 8479657 - 2³ = 8479649 is a prime.

It is a Duffinian number.

8479657 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8479057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5248 + ... + 6670.

It is an arithmetic number, because the mean of its divisors is an integer number (1089360).

Almost surely, 2^8479657 is an apocalyptic number.

It is an amenable number.

8479657 is a deficient number, since it is larger than the sum of its proper divisors (235223).

8479657 is a wasteful number, since it uses less digits than its factorization.

8479657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583.

The product of its digits is 423360, while the sum is 46.

The square root of 8479657 is about 2911.9850617749. The cubic root of 8479657 is about 203.9198150197.

Subtracting from 8479657 its reverse (7569748), we obtain a palindrome (909909).

The spelling of 8479657 in words is "eight million, four hundred seventy-nine thousand, six hundred fifty-seven".