669493592 has 32 divisors (see below), whose sum is σ = 1361571120. Its totient is φ = 307368960.

The previous prime is 669493571. The next prime is 669493603. The reversal of 669493592 is 295394966.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54458 + ... + 65609.

Almost surely, 2^669493592 is an apocalyptic number.

It is an amenable number.

669493592 is an abundant number, since it is smaller than the sum of its proper divisors (692077528).

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

669493592 is a wasteful number, since it uses less digits than its factorization.

669493592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120131 (or 120127 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 53.

The square root of 669493592 is about 25874.5742380430. The cubic root of 669493592 is about 874.8134969034.

The spelling of 669493592 in words is "six hundred sixty-nine million, four hundred ninety-three thousand, five hundred ninety-two".