77790412 has 24 divisors (see below), whose sum is σ = 160947360. Its totient is φ = 32188800.

The previous prime is 77790409. The next prime is 77790413. The reversal of 77790412 is 21409777.

It is not an unprimeable number, because it can be changed into a prime (77790413) 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, 47089 + ... + 48712.

It is an arithmetic number, because the mean of its divisors is an integer number (6706140).

Almost surely, 2^77790412 is an apocalyptic number.

It is an amenable number.

77790412 is an abundant number, since it is smaller than the sum of its proper divisors (83156948).

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

77790412 is a wasteful number, since it uses less digits than its factorization.

77790412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95841 (or 95839 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 77790412 is about 8819.8873008673. The cubic root of 77790412 is about 426.8828334422.

The spelling of 77790412 in words is "seventy-seven million, seven hundred ninety thousand, four hundred twelve".