663290970 has 32 divisors (see below), whose sum is σ = 1594055808. Its totient is φ = 176637888.

The previous prime is 663290963. The next prime is 663290981. The reversal of 663290970 is 79092366.

It is a Curzon number.

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, 8107 + ... + 37313.

It is an arithmetic number, because the mean of its divisors is an integer number (49814244).

Almost surely, 2^663290970 is an apocalyptic number.

663290970 is an abundant number, since it is smaller than the sum of its proper divisors (930764838).

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

663290970 is a wasteful number, since it uses less digits than its factorization.

663290970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29974.

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 663290970 is about 25754.4359285930. The cubic root of 663290970 is about 872.1034976963.

The spelling of 663290970 in words is "six hundred sixty-three million, two hundred ninety thousand, nine hundred seventy".