814976663 has 4 divisors (see below), whose sum is σ = 832316640. Its totient is φ = 797636688.

The previous prime is 814976627. The next prime is 814976681. The reversal of 814976663 is 366679418.

814976663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 814976663 - 2²² = 810782359 is a prime.

It is a super-2 number, since 2×814976663² = 1328373922469231138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814976623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8669918 + ... + 8670011.

It is an arithmetic number, because the mean of its divisors is an integer number (208079160).

Almost surely, 2^814976663 is an apocalyptic number.

814976663 is a deficient number, since it is larger than the sum of its proper divisors (17339977).

814976663 is a wasteful number, since it uses less digits than its factorization.

814976663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17339976.

The product of its digits is 1306368, while the sum is 50.

The square root of 814976663 is about 28547.7961145865. The cubic root of 814976663 is about 934.0749477126.

The spelling of 814976663 in words is "eight hundred fourteen million, nine hundred seventy-six thousand, six hundred sixty-three".