77313244 has 12 divisors (see below), whose sum is σ = 136496304. Its totient is φ = 38314304.

The previous prime is 77313233. The next prime is 77313253. The reversal of 77313244 is 44231377.

It is a congruent 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, 85072 + ... + 85975.

It is an arithmetic number, because the mean of its divisors is an integer number (11374692).

Almost surely, 2^77313244 is an apocalyptic number.

It is an amenable number.

77313244 is a deficient number, since it is larger than the sum of its proper divisors (59183060).

77313244 is a wasteful number, since it uses less digits than its factorization.

77313244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171164 (or 171162 counting only the distinct ones).

The product of its digits is 14112, while the sum is 31.

The square root of 77313244 is about 8792.7950050027. The cubic root of 77313244 is about 426.0082066204.

The spelling of 77313244 in words is "seventy-seven million, three hundred thirteen thousand, two hundred forty-four".