77384912 has 20 divisors (see below), whose sum is σ = 163563936. Its totient is φ = 35174880.

The previous prime is 77384893. The next prime is 77384927. The reversal of 77384912 is 21948377.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 77384912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219668 + ... + 220019.

Almost surely, 2^77384912 is an apocalyptic number.

It is an amenable number.

77384912 is an abundant number, since it is smaller than the sum of its proper divisors (86179024).

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

77384912 is a wasteful number, since it uses less digits than its factorization.

77384912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439706 (or 439700 counting only the distinct ones).

The product of its digits is 84672, while the sum is 41.

The square root of 77384912 is about 8796.8694431599. The cubic root of 77384912 is about 426.1397999735.

The spelling of 77384912 in words is "seventy-seven million, three hundred eighty-four thousand, nine hundred twelve".