77320088 has 16 divisors (see below), whose sum is σ = 145143360. Its totient is φ = 38615200.

The previous prime is 77320073. The next prime is 77320109. The reversal of 77320088 is 88002377.

It is a happy number.

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, 2393 + ... + 12663.

It is an arithmetic number, because the mean of its divisors is an integer number (9071460).

Almost surely, 2^77320088 is an apocalyptic number.

It is an amenable number.

77320088 is a deficient number, since it is larger than the sum of its proper divisors (67823272).

77320088 is a wasteful number, since it uses less digits than its factorization.

77320088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11218 (or 11214 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 77320088 is about 8793.1841786693. The cubic root of 77320088 is about 426.0207767571.

The spelling of 77320088 in words is "seventy-seven million, three hundred twenty thousand, eighty-eight".