77328792 has 48 divisors (see below), whose sum is σ = 214311240. Its totient is φ = 25175808.

The previous prime is 77328791. The next prime is 77328821. The reversal of 77328792 is 29782377.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77328791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9393 + ... + 15584.

Almost surely, 2^77328792 is an apocalyptic number.

77328792 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

77328792 is an abundant number, since it is smaller than the sum of its proper divisors (136982448).

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

77328792 is a wasteful number, since it uses less digits than its factorization.

77328792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25032 (or 25025 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 77328792 is about 8793.6790935308. The cubic root of 77328792 is about 426.0367620196.

The spelling of 77328792 in words is "seventy-seven million, three hundred twenty-eight thousand, seven hundred ninety-two".