669914575 has 48 divisors (see below), whose sum is σ = 931297536. Its totient is φ = 473932800.

The previous prime is 669914573. The next prime is 669914599. The reversal of 669914575 is 575419966.

It is not a de Polignac number, because 669914575 - 2¹ = 669914573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669914573) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1897599 + ... + 1897951.

It is an arithmetic number, because the mean of its divisors is an integer number (19402032).

Almost surely, 2^669914575 is an apocalyptic number.

669914575 is a deficient number, since it is larger than the sum of its proper divisors (261382961).

669914575 is a wasteful number, since it uses less digits than its factorization.

669914575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 539 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 52.

The square root of 669914575 is about 25882.7080306524. The cubic root of 669914575 is about 874.9968217572.

The spelling of 669914575 in words is "six hundred sixty-nine million, nine hundred fourteen thousand, five hundred seventy-five".