669009675 has 12 divisors (see below), whose sum is σ = 1106096120. Its totient is φ = 356805120.

The previous prime is 669009647. The next prime is 669009697. The reversal of 669009675 is 576900966.

It is not a de Polignac number, because 669009675 - 2⁶ = 669009611 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4459990 + ... + 4460139.

Almost surely, 2^669009675 is an apocalyptic number.

669009675 is a deficient number, since it is larger than the sum of its proper divisors (437086445).

669009675 is a wasteful number, since it uses less digits than its factorization.

669009675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8920142 (or 8920137 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 48.

The square root of 669009675 is about 25865.2213406342. The cubic root of 669009675 is about 874.6026713050.

The spelling of 669009675 in words is "six hundred sixty-nine million, nine thousand, six hundred seventy-five".