79648457 has 8 divisors (see below), whose sum is σ = 93487296. Its totient is φ = 66424752.

The previous prime is 79648447. The next prime is 79648523. The reversal of 79648457 is 75484697.

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 79648457 - 2⁸ = 79648201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79648447) 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, 153503 + ... + 154020.

It is an arithmetic number, because the mean of its divisors is an integer number (11685912).

Almost surely, 2^79648457 is an apocalyptic number.

It is an amenable number.

79648457 is a deficient number, since it is larger than the sum of its proper divisors (13838839).

79648457 is a wasteful number, since it uses less digits than its factorization.

79648457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307567.

The product of its digits is 1693440, while the sum is 50.

The square root of 79648457 is about 8924.5984223381. The cubic root of 79648457 is about 430.2548642338.

The spelling of 79648457 in words is "seventy-nine million, six hundred forty-eight thousand, four hundred fifty-seven".