77636056 has 8 divisors (see below), whose sum is σ = 145567620. Its totient is φ = 38818024.

The previous prime is 77636051. The next prime is 77636077. The reversal of 77636056 is 65063677.

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 (77636051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4852246 + ... + 4852261.

Almost surely, 2^77636056 is an apocalyptic number.

It is an amenable number.

77636056 is a deficient number, since it is larger than the sum of its proper divisors (67931564).

77636056 is a wasteful number, since it uses less digits than its factorization.

77636056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9704513 (or 9704509 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 40.

The square root of 77636056 is about 8811.1325038272. The cubic root of 77636056 is about 426.6002983792.

The spelling of 77636056 in words is "seventy-seven million, six hundred thirty-six thousand, fifty-six".