77039996 has 12 divisors (see below), whose sum is σ = 147076440. Its totient is φ = 35018160.

The previous prime is 77039993. The next prime is 77040013. The reversal of 77039996 is 69993077.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77039993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875411 + ... + 875498.

It is an arithmetic number, because the mean of its divisors is an integer number (12256370).

Almost surely, 2^77039996 is an apocalyptic number.

It is an amenable number.

77039996 is a deficient number, since it is larger than the sum of its proper divisors (70036444).

77039996 is a wasteful number, since it uses less digits than its factorization.

77039996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750924 (or 1750922 counting only the distinct ones).

The product of its (nonzero) digits is 642978, while the sum is 50.

The square root of 77039996 is about 8777.2430751347. The cubic root of 77039996 is about 425.5057342884.

The spelling of 77039996 in words is "seventy-seven million, thirty-nine thousand, nine hundred ninety-six".