79443428 has 12 divisors (see below), whose sum is σ = 139114752. Its totient is φ = 39696360.

The previous prime is 79443409. The next prime is 79443437. The reversal of 79443428 is 82434497.

It is a super-2 number, since 2×79443428² = 12622516504782368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1901 + ... + 12747.

It is an arithmetic number, because the mean of its divisors is an integer number (11592896).

Almost surely, 2^79443428 is an apocalyptic number.

It is an amenable number.

79443428 is a deficient number, since it is larger than the sum of its proper divisors (59671324).

79443428 is a wasteful number, since it uses less digits than its factorization.

79443428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12682 (or 12680 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 79443428 is about 8913.1042852645. The cubic root of 79443428 is about 429.8853633476.

The spelling of 79443428 in words is "seventy-nine million, four hundred forty-three thousand, four hundred twenty-eight".