977663617 has 8 divisors (see below), whose sum is σ = 1147528256. Its totient is φ = 815348592.

The previous prime is 977663593. The next prime is 977663627. The reversal of 977663617 is 716366779.

977663617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-977663617 is a prime.

It is a super-2 number, since 2×977663617² = 1911652296011045378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (977663627) 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, 1887123 + ... + 1887640.

It is an arithmetic number, because the mean of its divisors is an integer number (143441032).

Almost surely, 2^977663617 is an apocalyptic number.

It is an amenable number.

977663617 is a deficient number, since it is larger than the sum of its proper divisors (169864639).

977663617 is a wasteful number, since it uses less digits than its factorization.

977663617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3774807.

The product of its digits is 2000376, while the sum is 52.

The square root of 977663617 is about 31267.6129085672. The cubic root of 977663617 is about 992.4984057991.

The spelling of 977663617 in words is "nine hundred seventy-seven million, six hundred sixty-three thousand, six hundred seventeen".