77312104 has 32 divisors (see below), whose sum is σ = 148740480. Its totient is φ = 37661184.

The previous prime is 77312099. The next prime is 77312111. The reversal of 77312104 is 40121377.

It is a happy number.

It is a super-2 number, since 2×77312104² = 11954322849813632, which contains 22 as substring.

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, 51249 + ... + 52735.

It is an arithmetic number, because the mean of its divisors is an integer number (4648140).

Almost surely, 2^77312104 is an apocalyptic number.

It is an amenable number.

77312104 is a deficient number, since it is larger than the sum of its proper divisors (71428376).

77312104 is a wasteful number, since it uses less digits than its factorization.

77312104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657 (or 1653 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 77312104 is about 8792.7301789603. The cubic root of 77312104 is about 426.0061127500.

The spelling of 77312104 in words is "seventy-seven million, three hundred twelve thousand, one hundred four".