669805932 has 12 divisors (see below), whose sum is σ = 1562880536. Its totient is φ = 223268640.

The previous prime is 669805897. The next prime is 669805943. The reversal of 669805932 is 239508966.

It is a tau number, because it is divible by the number of its divisors (12).

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, 27908569 + ... + 27908592.

Almost surely, 2^669805932 is an apocalyptic number.

It is an amenable number.

669805932 is an abundant number, since it is smaller than the sum of its proper divisors (893074604).

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

669805932 is a wasteful number, since it uses less digits than its factorization.

669805932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55817168 (or 55817166 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 669805932 is about 25880.6091891207. The cubic root of 669805932 is about 874.9495185026.

The spelling of 669805932 in words is "six hundred sixty-nine million, eight hundred five thousand, nine hundred thirty-two".