79287320 has 64 divisors (see below), whose sum is σ = 215887680. Its totient is φ = 25583616.

The previous prime is 79287319. The next prime is 79287349. The reversal of 79287320 is 2378297.

It is a super-2 number, since 2×79287320² = 12572958225564800, which contains 22 as substring.

It is a congruent 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, 3569 + ... + 13088.

It is an arithmetic number, because the mean of its divisors is an integer number (3373245).

Almost surely, 2^79287320 is an apocalyptic number.

79287320 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

79287320 is an abundant number, since it is smaller than the sum of its proper divisors (136600360).

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

79287320 is a wasteful number, since it uses less digits than its factorization.

79287320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16692 (or 16688 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 79287320 is about 8904.3427606983. The cubic root of 79287320 is about 429.6036007961.

The spelling of 79287320 in words is "seventy-nine million, two hundred eighty-seven thousand, three hundred twenty".