77312934 has 16 divisors (see below), whose sum is σ = 171806640. Its totient is φ = 25770960.

The previous prime is 77312929. The next prime is 77312947. The reversal of 77312934 is 43921377.

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, 715807 + ... + 715914.

It is an arithmetic number, because the mean of its divisors is an integer number (10737915).

Almost surely, 2^77312934 is an apocalyptic number.

77312934 is an abundant number, since it is smaller than the sum of its proper divisors (94493706).

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

77312934 is a wasteful number, since it uses less digits than its factorization.

77312934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431732 (or 1431726 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 77312934 is about 8792.7773769157. Note that the first 3 decimals coincide. The cubic root of 77312934 is about 426.0076372366.

The spelling of 77312934 in words is "seventy-seven million, three hundred twelve thousand, nine hundred thirty-four".