79455457 has 4 divisors (see below), whose sum is σ = 79476736. Its totient is φ = 79434180.

The previous prime is 79455451. The next prime is 79455469. The reversal of 79455457 is 75455497.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79455457 - 2⁷ = 79455329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79455451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3393 + ... + 13054.

It is an arithmetic number, because the mean of its divisors is an integer number (19869184).

Almost surely, 2^79455457 is an apocalyptic number.

It is an amenable number.

79455457 is a deficient number, since it is larger than the sum of its proper divisors (21279).

79455457 is a wasteful number, since it uses less digits than its factorization.

79455457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21278.

The product of its digits is 882000, while the sum is 46.

The square root of 79455457 is about 8913.7790526802. The cubic root of 79455457 is about 429.9070594156.

The spelling of 79455457 in words is "seventy-nine million, four hundred fifty-five thousand, four hundred fifty-seven".