77930936 has 8 divisors (see below), whose sum is σ = 146120520. Its totient is φ = 38965464.

The previous prime is 77930929. The next prime is 77930939. The reversal of 77930936 is 63903977.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77930939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4870676 + ... + 4870691.

It is an arithmetic number, because the mean of its divisors is an integer number (18265065).

Almost surely, 2^77930936 is an apocalyptic number.

It is an amenable number.

77930936 is a deficient number, since it is larger than the sum of its proper divisors (68189584).

77930936 is a wasteful number, since it uses less digits than its factorization.

77930936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9741373 (or 9741369 counting only the distinct ones).

The product of its (nonzero) digits is 214326, while the sum is 44.

The square root of 77930936 is about 8827.8500213812. The cubic root of 77930936 is about 427.1397254195.

The spelling of 77930936 in words is "seventy-seven million, nine hundred thirty thousand, nine hundred thirty-six".