77608797 has 36 divisors (see below), whose sum is σ = 123503040. Its totient is φ = 43222704.

The previous prime is 77608793. The next prime is 77608799. The reversal of 77608797 is 79780677.

It is not a de Polignac number, because 77608797 - 2² = 77608793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77608793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 324604 + ... + 324842.

It is an arithmetic number, because the mean of its divisors is an integer number (3430640).

Almost surely, 2^77608797 is an apocalyptic number.

It is an amenable number.

77608797 is a deficient number, since it is larger than the sum of its proper divisors (45894243).

77608797 is a wasteful number, since it uses less digits than its factorization.

77608797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 1037232, while the sum is 51.

The square root of 77608797 is about 8809.5855180593. The cubic root of 77608797 is about 426.5503642833.

The spelling of 77608797 in words is "seventy-seven million, six hundred eight thousand, seven hundred ninety-seven".