669000810 has 16 divisors (see below), whose sum is σ = 1605602016. Its totient is φ = 178400208.

The previous prime is 669000791. The next prime is 669000841. The reversal of 669000810 is 18000966.

It is a super-2 number, since 2×669000810² = 895124167561312200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 22300027 = 669000810 / (6 + 6 + 9 + 0 + 0 + 0 + 8 + 1 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11149984 + ... + 11150043.

It is an arithmetic number, because the mean of its divisors is an integer number (100350126).

Almost surely, 2^669000810 is an apocalyptic number.

669000810 is an abundant number, since it is smaller than the sum of its proper divisors (936601206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

669000810 is a wasteful number, since it uses less digits than its factorization.

669000810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22300037.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 669000810 is about 25865.0499709550. The cubic root of 669000810 is about 874.5988081885.

The spelling of 669000810 in words is "six hundred sixty-nine million, eight hundred ten", and thus it is an aban number.