77936924 has 24 divisors (see below), whose sum is σ = 149657760. Its totient is φ = 35290944.

The previous prime is 77936923. The next prime is 77936927. The reversal of 77936924 is 42963977.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77936923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11384 + ... + 16895.

It is an arithmetic number, because the mean of its divisors is an integer number (6235740).

Almost surely, 2^77936924 is an apocalyptic number.

It is an amenable number.

77936924 is a deficient number, since it is larger than the sum of its proper divisors (71720836).

77936924 is a wasteful number, since it uses less digits than its factorization.

77936924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28349 (or 28347 counting only the distinct ones).

The product of its digits is 571536, while the sum is 47.

The square root of 77936924 is about 8828.1891687933. The cubic root of 77936924 is about 427.1506652221.

The spelling of 77936924 in words is "seventy-seven million, nine hundred thirty-six thousand, nine hundred twenty-four".