79448457 has 8 divisors (see below), whose sum is σ = 115561440. Its totient is φ = 48150560.

The previous prime is 79448441. The next prime is 79448461. The reversal of 79448457 is 75484497.

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 79448457 - 2⁴ = 79448441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79448357) 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, 1203732 + ... + 1203797.

It is an arithmetic number, because the mean of its divisors is an integer number (14445180).

Almost surely, 2^79448457 is an apocalyptic number.

It is an amenable number.

79448457 is a deficient number, since it is larger than the sum of its proper divisors (36112983).

79448457 is a wasteful number, since it uses less digits than its factorization.

79448457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407543.

The product of its digits is 1128960, while the sum is 48.

The square root of 79448457 is about 8913.3863935095. The cubic root of 79448457 is about 429.8944341540.

The spelling of 79448457 in words is "seventy-nine million, four hundred forty-eight thousand, four hundred fifty-seven".