663296874 has 32 divisors (see below), whose sum is σ = 1374347520. Its totient is φ = 213162432.

The previous prime is 663296869. The next prime is 663296899. The reversal of 663296874 is 478692366.

It is a happy number.

663296874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136287 + ... + 141069.

It is an arithmetic number, because the mean of its divisors is an integer number (42948360).

Almost surely, 2^663296874 is an apocalyptic number.

663296874 is an abundant number, since it is smaller than the sum of its proper divisors (711050646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663296874 is a wasteful number, since it uses less digits than its factorization.

663296874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5614.

The product of its digits is 2612736, while the sum is 51.

The square root of 663296874 is about 25754.5505493689. The cubic root of 663296874 is about 872.1060852403.

The spelling of 663296874 in words is "six hundred sixty-three million, two hundred ninety-six thousand, eight hundred seventy-four".