77682012 has 24 divisors (see below), whose sum is σ = 182016912. Its totient is φ = 25785600.

The previous prime is 77681999. The next prime is 77682041. The reversal of 77682012 is 21028677.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10539 + ... + 16322.

It is an arithmetic number, because the mean of its divisors is an integer number (7584038).

Almost surely, 2^77682012 is an apocalyptic number.

It is an amenable number.

77682012 is an abundant number, since it is smaller than the sum of its proper divisors (104334900).

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

77682012 is a wasteful number, since it uses less digits than its factorization.

77682012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27109 (or 27107 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 77682012 is about 8813.7399553198. The cubic root of 77682012 is about 426.6844559098.

The spelling of 77682012 in words is "seventy-seven million, six hundred eighty-two thousand, twelve".