669275 has 12 divisors (see below), whose sum is σ = 874200. Its totient is φ = 506880.

The previous prime is 669271. The next prime is 669283. The reversal of 669275 is 572966.

It is not a de Polignac number, because 669275 - 2² = 669271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (669271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230 + ... + 1179.

It is an arithmetic number, because the mean of its divisors is an integer number (72850).

2⁶⁶⁹²⁷⁵ is an apocalyptic number.

669275 is a deficient number, since it is larger than the sum of its proper divisors (204925).

669275 is a wasteful number, since it uses less digits than its factorization.

669275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438 (or 1433 counting only the distinct ones).

The product of its digits is 22680, while the sum is 35.

The square root of 669275 is about 818.0922930819. The cubic root of 669275 is about 87.4718276650.

The spelling of 669275 in words is "six hundred sixty-nine thousand, two hundred seventy-five".