79661760 has 56 divisors (see below), whose sum is σ = 252929136. Its totient is φ = 21242880.

The previous prime is 79661759. The next prime is 79661767. The reversal of 79661760 is 6716697.

It is not an unprimeable number, because it can be changed into a prime (79661767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40531 + ... + 42450.

Almost surely, 2^79661760 is an apocalyptic number.

It is an amenable number.

79661760 is an abundant number, since it is smaller than the sum of its proper divisors (173267376).

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

79661760 is a wasteful number, since it uses less digits than its factorization.

79661760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83001 (or 82991 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 79661760 is about 8925.3436908614. The cubic root of 79661760 is about 430.2788168294.

The spelling of 79661760 in words is "seventy-nine million, six hundred sixty-one thousand, seven hundred sixty".