77936344 has 32 divisors (see below), whose sum is σ = 149299200. Its totient is φ = 38132640.

The previous prime is 77936317. The next prime is 77936363. The reversal of 77936344 is 44363977.

It is a self number, because there is not a number n which added to its sum of digits gives 77936344.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79779 + ... + 80749.

It is an arithmetic number, because the mean of its divisors is an integer number (4665600).

Almost surely, 2^77936344 is an apocalyptic number.

It is an amenable number.

77936344 is a deficient number, since it is larger than the sum of its proper divisors (71362856).

77936344 is a wasteful number, since it uses less digits than its factorization.

77936344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183 (or 1179 counting only the distinct ones).

The product of its digits is 381024, while the sum is 43.

The square root of 77936344 is about 8828.1563194135. The cubic root of 77936344 is about 427.1496056131.

The spelling of 77936344 in words is "seventy-seven million, nine hundred thirty-six thousand, three hundred forty-four".