77045636 has 24 divisors (see below), whose sum is σ = 136617600. Its totient is φ = 38016000.

The previous prime is 77045621. The next prime is 77045651. The reversal of 77045636 is 63654077.

It is an interprime number because it is at equal distance from previous prime (77045621) and next prime (77045651).

It is a self number, because there is not a number n which added to its sum of digits gives 77045636.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119876 + ... + 120516.

It is an arithmetic number, because the mean of its divisors is an integer number (5692400).

Almost surely, 2^77045636 is an apocalyptic number.

It is an amenable number.

77045636 is a deficient number, since it is larger than the sum of its proper divisors (59571964).

77045636 is a wasteful number, since it uses less digits than its factorization.

77045636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 77045636 is about 8777.5643546487. The cubic root of 77045636 is about 425.5161176126.

The spelling of 77045636 in words is "seventy-seven million, forty-five thousand, six hundred thirty-six".