79320638 has 8 divisors (see below), whose sum is σ = 121748088. Its totient is φ = 38737944.

The previous prime is 79320617. The next prime is 79320641. The reversal of 79320638 is 83602397.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×79320638² = 12583527225454088, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461081 + ... + 461252.

It is an arithmetic number, because the mean of its divisors is an integer number (15218511).

Almost surely, 2^79320638 is an apocalyptic number.

79320638 is a deficient number, since it is larger than the sum of its proper divisors (42427450).

79320638 is a wasteful number, since it uses less digits than its factorization.

79320638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922378.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 79320638 is about 8906.2134490478. The cubic root of 79320638 is about 429.6637681650.

The spelling of 79320638 in words is "seventy-nine million, three hundred twenty thousand, six hundred thirty-eight".