79722884 has 6 divisors (see below), whose sum is σ = 139515054. Its totient is φ = 39861440.

The previous prime is 79722883. The next prime is 79722887. The reversal of 79722884 is 48822797.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 45265984 + 34456900 = 6728^2 + 5870^2 .

It is not an unprimeable number, because it can be changed into a prime (79722883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9965357 + ... + 9965364.

It is an arithmetic number, because the mean of its divisors is an integer number (23252509).

Almost surely, 2^79722884 is an apocalyptic number.

It is an amenable number.

79722884 is a deficient number, since it is larger than the sum of its proper divisors (59792170).

79722884 is a wasteful number, since it uses less digits than its factorization.

79722884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19930725 (or 19930723 counting only the distinct ones).

The product of its digits is 451584, while the sum is 47.

The square root of 79722884 is about 8928.7672161391. The cubic root of 79722884 is about 430.3888388297.

The spelling of 79722884 in words is "seventy-nine million, seven hundred twenty-two thousand, eight hundred eighty-four".