669875637 has 8 divisors (see below), whose sum is σ = 893355840. Its totient is φ = 446489600.

The previous prime is 669875623. The next prime is 669875663. The reversal of 669875637 is 736578966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 669875637 - 2⁶ = 669875573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669875737) 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, 4812 + ... + 36917.

It is an arithmetic number, because the mean of its divisors is an integer number (111669480).

Almost surely, 2^669875637 is an apocalyptic number.

It is an amenable number.

669875637 is a deficient number, since it is larger than the sum of its proper divisors (223480203).

669875637 is a wasteful number, since it uses less digits than its factorization.

669875637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47083.

The product of its digits is 11430720, while the sum is 57.

The square root of 669875637 is about 25881.9558186780. The cubic root of 669875637 is about 874.9798687069.

The spelling of 669875637 in words is "six hundred sixty-nine million, eight hundred seventy-five thousand, six hundred thirty-seven".