77940076 has 24 divisors (see below), whose sum is σ = 141276800. Its totient is φ = 37584000.

The previous prime is 77940073. The next prime is 77940089. The reversal of 77940076 is 67004977.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (77940073) 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, 42376 + ... + 44176.

Almost surely, 2^77940076 is an apocalyptic number.

It is an amenable number.

77940076 is a deficient number, since it is larger than the sum of its proper divisors (63336724).

77940076 is a wasteful number, since it uses less digits than its factorization.

77940076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185 (or 2183 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 77940076 is about 8828.3676860448. The cubic root of 77940076 is about 427.1564235571.

The spelling of 77940076 in words is "seventy-seven million, nine hundred forty thousand, seventy-six".