77604916 has 6 divisors (see below), whose sum is σ = 135808610. Its totient is φ = 38802456.

The previous prime is 77604893. The next prime is 77604929. The reversal of 77604916 is 61940677.

It can be written as a sum of positive squares in only one way, i.e., 42250000 + 35354916 = 6500^2 + 5946^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9700611 + ... + 9700618.

Almost surely, 2^77604916 is an apocalyptic number.

It is an amenable number.

77604916 is a deficient number, since it is larger than the sum of its proper divisors (58203694).

77604916 is a wasteful number, since it uses less digits than its factorization.

77604916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19401233 (or 19401231 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 77604916 is about 8809.3652438754. The cubic root of 77604916 is about 426.5432539658.

The spelling of 77604916 in words is "seventy-seven million, six hundred four thousand, nine hundred sixteen".