77748336 has 60 divisors (see below), whose sum is σ = 225657432. Its totient is φ = 25914816.

The previous prime is 77748329. The next prime is 77748347. The reversal of 77748336 is 63384777.

It is a junction number, because it is equal to n+sod(n) for n = 77748291 and 77748300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6111 + ... + 13886.

Almost surely, 2^77748336 is an apocalyptic number.

It is an amenable number.

77748336 is an abundant number, since it is smaller than the sum of its proper divisors (147909096).

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

77748336 is a wasteful number, since it uses less digits than its factorization.

77748336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20020 (or 20002 counting only the distinct ones).

The product of its digits is 592704, while the sum is 45.

The square root of 77748336 is about 8817.5016869859. The cubic root of 77748336 is about 426.8058541118.

It can be divided in two parts, 7774 and 8336, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 77748336 in words is "seventy-seven million, seven hundred forty-eight thousand, three hundred thirty-six".