79855760 has 20 divisors (see below), whose sum is σ = 185664828. Its totient is φ = 31942272.

The previous prime is 79855739. The next prime is 79855829. The reversal of 79855760 is 6755897.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 62980096 + 16875664 = 7936^2 + 4108^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499019 + ... + 499178.

Almost surely, 2^79855760 is an apocalyptic number.

It is an amenable number.

79855760 is an abundant number, since it is smaller than the sum of its proper divisors (105809068).

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

79855760 is a wasteful number, since it uses less digits than its factorization.

79855760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998210 (or 998204 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 79855760 is about 8936.2050110771. The cubic root of 79855760 is about 430.6278191638.

The spelling of 79855760 in words is "seventy-nine million, eight hundred fifty-five thousand, seven hundred sixty".