77396812 has 12 divisors (see below), whose sum is σ = 135535176. Its totient is φ = 38672480.

The previous prime is 77396797. The next prime is 77396831. The reversal of 77396812 is 21869377.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263 + ... + 12505.

It is an arithmetic number, because the mean of its divisors is an integer number (11294598).

Almost surely, 2^77396812 is an apocalyptic number.

It is an amenable number.

77396812 is a deficient number, since it is larger than the sum of its proper divisors (58138364).

77396812 is a wasteful number, since it uses less digits than its factorization.

77396812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12968 (or 12966 counting only the distinct ones).

The product of its digits is 127008, while the sum is 43.

The square root of 77396812 is about 8797.5457941405. The cubic root of 77396812 is about 426.1616423180.

The spelling of 77396812 in words is "seventy-seven million, three hundred ninety-six thousand, eight hundred twelve".