669000699 has 12 divisors (see below), whose sum is σ = 966601896. Its totient is φ = 445876992.

The previous prime is 669000653. The next prime is 669000719. The reversal of 669000699 is 996000966.

It is not a de Polignac number, because 669000699 - 2¹⁷ = 668869627 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

669000699 is a strobogrammatic number because it is the same when read upside-down.

It is not an unprimeable number, because it can be changed into a prime (669000499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34104 + ... + 50010.

It is an arithmetic number, because the mean of its divisors is an integer number (80550158).

Almost surely, 2^669000699 is an apocalyptic number.

669000699 is a deficient number, since it is larger than the sum of its proper divisors (297601197).

669000699 is a wasteful number, since it uses less digits than its factorization.

669000699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20586 (or 20583 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 669000699 is about 25865.0478252023. The cubic root of 669000699 is about 874.5987598177.

The spelling of 669000699 in words is "six hundred sixty-nine million, six hundred ninety-nine", and thus it is an aban number.