77957077 has 8 divisors (see below), whose sum is σ = 86242752. Its totient is φ = 69871200.

The previous prime is 77957071. The next prime is 77957083. The reversal of 77957077 is 77075977.

It is an interprime number because it is at equal distance from previous prime (77957071) and next prime (77957083).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77957077 - 2³ = 77957069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77957077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77957071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49128 + ... + 50689.

It is an arithmetic number, because the mean of its divisors is an integer number (10780344).

Almost surely, 2^77957077 is an apocalyptic number.

It is an amenable number.

77957077 is a deficient number, since it is larger than the sum of its proper divisors (8285675).

77957077 is a wasteful number, since it uses less digits than its factorization.

77957077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99899.

The product of its (nonzero) digits is 756315, while the sum is 49.

The square root of 77957077 is about 8829.3304955699. The cubic root of 77957077 is about 427.1874797171.

The spelling of 77957077 in words is "seventy-seven million, nine hundred fifty-seven thousand, seventy-seven".