79901456 has 30 divisors (see below), whose sum is σ = 159040602. Its totient is φ = 38864640.

The previous prime is 79901447. The next prime is 79901473. The reversal of 79901456 is 65410997.

It can be written as a sum of positive squares in 3 ways, for example, as 9610000 + 70291456 = 3100^2 + 8384^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228770 + ... + 229118.

Almost surely, 2^79901456 is an apocalyptic number.

It is an amenable number.

79901456 is a deficient number, since it is larger than the sum of its proper divisors (79139146).

79901456 is an equidigital number, since it uses as much as digits as its factorization.

79901456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 79901456 is about 8938.7614354563. The cubic root of 79901456 is about 430.7099431356.

Multiplying 79901456 by its sum of digits (41), we get a square (3275959696 = 57236²).

79901456 divided by its sum of digits (41) gives a square (1948816 = 1396²).

The spelling of 79901456 in words is "seventy-nine million, nine hundred one thousand, four hundred fifty-six".