77693012 has 12 divisors (see below), whose sum is σ = 137034240. Its totient is φ = 38540376.

The previous prime is 77692997. The next prime is 77693017. The reversal of 77693012 is 21039677.

It is a super-2 number, since 2×77693012² = 12072408227264288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77693017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75962 + ... + 76977.

It is an arithmetic number, because the mean of its divisors is an integer number (11419520).

Almost surely, 2^77693012 is an apocalyptic number.

It is an amenable number.

77693012 is a deficient number, since it is larger than the sum of its proper divisors (59341228).

77693012 is a wasteful number, since it uses less digits than its factorization.

77693012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153070 (or 153068 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 77693012 is about 8814.3639589025. The cubic root of 77693012 is about 426.7045948813.

The spelling of 77693012 in words is "seventy-seven million, six hundred ninety-three thousand, twelve".