77870076 has 48 divisors (see below), whose sum is σ = 187017600. Its totient is φ = 25204032.

The previous prime is 77870071. The next prime is 77870077. The reversal of 77870076 is 67007877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77870071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117835 + ... + 118493.

It is an arithmetic number, because the mean of its divisors is an integer number (3896200).

Almost surely, 2^77870076 is an apocalyptic number.

It is an amenable number.

77870076 is an abundant number, since it is smaller than the sum of its proper divisors (109147524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77870076 is a wasteful number, since it uses less digits than its factorization.

77870076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938 (or 936 counting only the distinct ones).

The product of its (nonzero) digits is 115248, while the sum is 42.

The square root of 77870076 is about 8824.4023027058. The cubic root of 77870076 is about 427.0285051731.

The spelling of 77870076 in words is "seventy-seven million, eight hundred seventy thousand, seventy-six".