79722480 has 80 divisors (see below), whose sum is σ = 260161920. Its totient is φ = 20139264.

The previous prime is 79722463. The next prime is 79722493. The reversal of 79722480 is 8422797.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4182 + ... + 13301.

It is an arithmetic number, because the mean of its divisors is an integer number (3252024).

Almost surely, 2^79722480 is an apocalyptic number.

It is an amenable number.

79722480 is an abundant number, since it is smaller than the sum of its proper divisors (180439440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79722480 is a wasteful number, since it uses less digits than its factorization.

79722480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17518 (or 17512 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 79722480 is about 8928.7445926065. The cubic root of 79722480 is about 430.3881118223.

The spelling of 79722480 in words is "seventy-nine million, seven hundred twenty-two thousand, four hundred eighty".