79221508 has 24 divisors (see below), whose sum is σ = 143321472. Its totient is φ = 38293344.

The previous prime is 79221503. The next prime is 79221509. The reversal of 79221508 is 80512297.

It is not an unprimeable number, because it can be changed into a prime (79221503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13066 + ... + 18142.

It is an arithmetic number, because the mean of its divisors is an integer number (5971728).

Almost surely, 2^79221508 is an apocalyptic number.

It is an amenable number.

79221508 is a deficient number, since it is larger than the sum of its proper divisors (64099964).

79221508 is a wasteful number, since it uses less digits than its factorization.

79221508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5211 (or 5209 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 79221508 is about 8900.6464933734. The cubic root of 79221508 is about 429.4847045320.

The spelling of 79221508 in words is "seventy-nine million, two hundred twenty-one thousand, five hundred eight".