79220538 has 32 divisors (see below), whose sum is σ = 185313600. Its totient is φ = 25016688.

The previous prime is 79220501. The next prime is 79220543. The reversal of 79220538 is 83502297.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37581 + ... + 39632.

It is an arithmetic number, because the mean of its divisors is an integer number (5791050).

Almost surely, 2^79220538 is an apocalyptic number.

79220538 is an abundant number, since it is smaller than the sum of its proper divisors (106093062).

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

79220538 is a wasteful number, since it uses less digits than its factorization.

79220538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77243 (or 77237 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 79220538 is about 8900.5920027827. The cubic root of 79220538 is about 429.4829516331.

The spelling of 79220538 in words is "seventy-nine million, two hundred twenty thousand, five hundred thirty-eight".