79758660 has 96 divisors (see below), whose sum is σ = 232952832. Its totient is φ = 20367360.

The previous prime is 79758649. The next prime is 79758661. The reversal of 79758660 is 6685797.

It is a super-2 number, since 2×79758660² = 12722887689991200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79758661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254664 + ... + 254976.

It is an arithmetic number, because the mean of its divisors is an integer number (2426592).

Almost surely, 2^79758660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79758660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116476416).

79758660 is an abundant number, since it is smaller than the sum of its proper divisors (153194172).

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

79758660 is a wasteful number, since it uses less digits than its factorization.

79758660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 48.

The square root of 79758660 is about 8930.7704034982. The cubic root of 79758660 is about 430.4532088393.

The spelling of 79758660 in words is "seventy-nine million, seven hundred fifty-eight thousand, six hundred sixty".