669250684 has 12 divisors (see below), whose sum is σ = 1171372104. Its totient is φ = 334572944.

The previous prime is 669250669. The next prime is 669250691. The reversal of 669250684 is 486052966.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36522 + ... + 51694.

It is an arithmetic number, because the mean of its divisors is an integer number (97614342).

Almost surely, 2^669250684 is an apocalyptic number.

It is an amenable number.

669250684 is a deficient number, since it is larger than the sum of its proper divisors (502121420).

669250684 is a wasteful number, since it uses less digits than its factorization.

669250684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26204 (or 26202 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 669250684 is about 25869.8798605637. The cubic root of 669250684 is about 874.7076831438.

The spelling of 669250684 in words is "six hundred sixty-nine million, two hundred fifty thousand, six hundred eighty-four".