79085457 has 16 divisors (see below), whose sum is σ = 127815360. Its totient is φ = 47930400.

The previous prime is 79085437. The next prime is 79085459. The reversal of 79085457 is 75458097.

It is not a de Polignac number, because 79085457 - 2⁷ = 79085329 is a prime.

It is a super-3 number, since 3×79085457³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (79085459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132844 + ... + 133437.

It is an arithmetic number, because the mean of its divisors is an integer number (7988460).

Almost surely, 2^79085457 is an apocalyptic number.

It is an amenable number.

79085457 is a deficient number, since it is larger than the sum of its proper divisors (48729903).

79085457 is a wasteful number, since it uses less digits than its factorization.

79085457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266301 (or 266295 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 79085457 is about 8893.0004497920. Note that the first 3 decimals coincide. The cubic root of 79085457 is about 429.2387052394.

The spelling of 79085457 in words is "seventy-nine million, eighty-five thousand, four hundred fifty-seven".