77755996 has 6 divisors (see below), whose sum is σ = 136073000. Its totient is φ = 38877996.

The previous prime is 77755973. The next prime is 77756009. The reversal of 77755996 is 69955777.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9719496 + ... + 9719503.

Almost surely, 2^77755996 is an apocalyptic number.

It is an amenable number.

77755996 is a deficient number, since it is larger than the sum of its proper divisors (58317004).

77755996 is a wasteful number, since it uses less digits than its factorization.

77755996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19439003 (or 19439001 counting only the distinct ones).

The product of its digits is 4167450, while the sum is 55.

The square root of 77755996 is about 8817.9360396864. The cubic root of 77755996 is about 426.8198703838.

The spelling of 77755996 in words is "seventy-seven million, seven hundred fifty-five thousand, nine hundred ninety-six".