663702899 has 16 divisors (see below), whose sum is σ = 712706400. Its totient is φ = 615873024.

The previous prime is 663702887. The next prime is 663702947. The reversal of 663702899 is 998207366.

It is a cyclic number.

It is not a de Polignac number, because 663702899 - 2⁸ = 663702643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663702869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370097 + ... + 371885.

It is an arithmetic number, because the mean of its divisors is an integer number (44544150).

Almost surely, 2^663702899 is an apocalyptic number.

663702899 is a deficient number, since it is larger than the sum of its proper divisors (49003501).

663702899 is a wasteful number, since it uses less digits than its factorization.

663702899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2102.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 663702899 is about 25762.4319310115. The cubic root of 663702899 is about 872.2839968514.

The spelling of 663702899 in words is "six hundred sixty-three million, seven hundred two thousand, eight hundred ninety-nine".