77371648 has 36 divisors (see below), whose sum is σ = 162579760. Its totient is φ = 36647424.

The previous prime is 77371627. The next prime is 77371703. The reversal of 77371648 is 84617377.

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, 3090 + ... + 12817.

Almost surely, 2^77371648 is an apocalyptic number.

It is an amenable number.

77371648 is an abundant number, since it is smaller than the sum of its proper divisors (85208112).

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

77371648 is a wasteful number, since it uses less digits than its factorization.

77371648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15942 (or 15928 counting only the distinct ones).

The product of its digits is 197568, while the sum is 43.

The square root of 77371648 is about 8796.1155062903. The cubic root of 77371648 is about 426.1154513801.

The spelling of 77371648 in words is "seventy-seven million, three hundred seventy-one thousand, six hundred forty-eight".