669860223 has 16 divisors (see below), whose sum is σ = 901308672. Its totient is φ = 442512000.

The previous prime is 669860203. The next prime is 669860227. The reversal of 669860223 is 322068966.

It is not a de Polignac number, because 669860223 - 2⁶ = 669860159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669860227) 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 15 ways as a sum of consecutive naturals, for example, 150358 + ... + 154748.

It is an arithmetic number, because the mean of its divisors is an integer number (56331792).

Almost surely, 2^669860223 is an apocalyptic number.

669860223 is a deficient number, since it is larger than the sum of its proper divisors (231448449).

669860223 is a wasteful number, since it uses less digits than its factorization.

669860223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4846.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 669860223 is about 25881.6580419416. The cubic root of 669860223 is about 874.9731574895.

The spelling of 669860223 in words is "six hundred sixty-nine million, eight hundred sixty thousand, two hundred twenty-three".