79850680 has 64 divisors (see below), whose sum is σ = 221135040. Its totient is φ = 25270272.

The previous prime is 79850669. The next prime is 79850681. The reversal of 79850680 is 8605897.

It is a happy number.

It is a super-2 number, since 2×79850680² = 12752262192924800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79850681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7329 + ... + 14608.

It is an arithmetic number, because the mean of its divisors is an integer number (3455235).

Almost surely, 2^79850680 is an apocalyptic number.

79850680 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

79850680 is an abundant number, since it is smaller than the sum of its proper divisors (141284360).

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

79850680 is a wasteful number, since it uses less digits than its factorization.

79850680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21968 (or 21964 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 79850680 is about 8935.9207695682. The cubic root of 79850680 is about 430.6186875507.

The spelling of 79850680 in words is "seventy-nine million, eight hundred fifty thousand, six hundred eighty".