669372319 has 16 divisors (see below), whose sum is σ = 838056960. Its totient is φ = 519392160.

The previous prime is 669372311. The next prime is 669372329. The reversal of 669372319 is 913273966.

It is not a de Polignac number, because 669372319 - 2³ = 669372311 is a prime.

It is a super-2 number, since 2×669372319² = 896118602886875522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669372311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217 + ... + 36589.

It is an arithmetic number, because the mean of its divisors is an integer number (52378560).

Almost surely, 2^669372319 is an apocalyptic number.

669372319 is a deficient number, since it is larger than the sum of its proper divisors (168684641).

669372319 is a wasteful number, since it uses less digits than its factorization.

669372319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36630.

The product of its digits is 367416, while the sum is 46.

The square root of 669372319 is about 25872.2306537337. The cubic root of 669372319 is about 874.7606720694.

The spelling of 669372319 in words is "six hundred sixty-nine million, three hundred seventy-two thousand, three hundred nineteen".