669637092 has 24 divisors (see below), whose sum is σ = 1600597152. Its totient is φ = 217768000.

The previous prime is 669637069. The next prime is 669637099. The reversal of 669637092 is 290736966.

It is not an unprimeable number, because it can be changed into a prime (669637099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680034 + ... + 681017.

It is an arithmetic number, because the mean of its divisors is an integer number (66691548).

Almost surely, 2^669637092 is an apocalyptic number.

It is an amenable number.

669637092 is an abundant number, since it is smaller than the sum of its proper divisors (930960060).

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

669637092 is a wasteful number, since it uses less digits than its factorization.

669637092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361099 (or 1361097 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 48.

The square root of 669637092 is about 25877.3470819557. The cubic root of 669637092 is about 874.8759952705.

The spelling of 669637092 in words is "six hundred sixty-nine million, six hundred thirty-seven thousand, ninety-two".