79744145 has 32 divisors (see below), whose sum is σ = 106858752. Its totient is φ = 56754432.

The previous prime is 79744129. The next prime is 79744153. The reversal of 79744145 is 54144797.

It is a cyclic number.

It is not a de Polignac number, because 79744145 - 2⁴ = 79744129 is a prime.

Its product of digits (141120) is a multiple of the sum of its prime divisors (441).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287747 + ... + 288023.

It is an arithmetic number, because the mean of its divisors is an integer number (3339336).

Almost surely, 2^79744145 is an apocalyptic number.

It is an amenable number.

79744145 is a deficient number, since it is larger than the sum of its proper divisors (27114607).

79744145 is a wasteful number, since it uses less digits than its factorization.

79744145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441.

The product of its digits is 141120, while the sum is 41.

The square root of 79744145 is about 8929.9577266637. The cubic root of 79744145 is about 430.4270950297.

The spelling of 79744145 in words is "seventy-nine million, seven hundred forty-four thousand, one hundred forty-five".