664284952 has 16 divisors (see below), whose sum is σ = 1275913800. Its totient is φ = 324041280.

The previous prime is 664284947. The next prime is 664284961. The reversal of 664284952 is 259482466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1012302 + ... + 1012957.

Almost surely, 2^664284952 is an apocalyptic number.

It is an amenable number.

664284952 is a deficient number, since it is larger than the sum of its proper divisors (611628848).

664284952 is a wasteful number, since it uses less digits than its factorization.

664284952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025306 (or 2025302 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The square root of 664284952 is about 25773.7260014923. The cubic root of 664284952 is about 872.5389137085.

The spelling of 664284952 in words is "six hundred sixty-four million, two hundred eighty-four thousand, nine hundred fifty-two".