786976663 has 12 divisors (see below), whose sum is σ = 862440264. Its totient is φ = 712179600.

The previous prime is 786976657. The next prime is 786976721. The reversal of 786976663 is 366679687.

It is a de Polignac number, because none of the positive numbers 2^k-786976663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 786976598 and 786976607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (786976063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1204845 + ... + 1205497.

It is an arithmetic number, because the mean of its divisors is an integer number (71870022).

Almost surely, 2^786976663 is an apocalyptic number.

786976663 is a deficient number, since it is larger than the sum of its proper divisors (75463601).

786976663 is an equidigital number, since it uses as much as digits as its factorization.

786976663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 995 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 58.

The square root of 786976663 is about 28053.1043380229. The cubic root of 786976663 is about 923.2527671786.

The spelling of 786976663 in words is "seven hundred eighty-six million, nine hundred seventy-six thousand, six hundred sixty-three".