77679112 has 48 divisors (see below), whose sum is σ = 171875520. Its totient is φ = 32810400.

The previous prime is 77679101. The next prime is 77679143. The reversal of 77679112 is 21197677.

It is a super-2 number, since 2×77679112² = 12068088882217088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26437 + ... + 29227.

It is an arithmetic number, because the mean of its divisors is an integer number (3580740).

Almost surely, 2^77679112 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 77679112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85937760).

77679112 is an abundant number, since it is smaller than the sum of its proper divisors (94196408).

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

77679112 is a wasteful number, since it uses less digits than its factorization.

77679112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882 (or 2871 counting only the distinct ones).

The product of its digits is 37044, while the sum is 40.

The square root of 77679112 is about 8813.5754379253. The cubic root of 77679112 is about 426.6791462279.

The spelling of 77679112 in words is "seventy-seven million, six hundred seventy-nine thousand, one hundred twelve".