669267207 has 24 divisors (see below), whose sum is σ = 1106268800. Its totient is φ = 381937680.

The previous prime is 669267197. The next prime is 669267233. The reversal of 669267207 is 702762966.

669267207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 669267207 - 2⁸ = 669266951 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669267707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44544 + ... + 57642.

Almost surely, 2^669267207 is an apocalyptic number.

669267207 is a deficient number, since it is larger than the sum of its proper divisors (437001593).

669267207 is a wasteful number, since it uses less digits than its factorization.

669267207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13923 (or 13920 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 669267207 is about 25870.1992068094. The cubic root of 669267207 is about 874.7148815806.

The spelling of 669267207 in words is "six hundred sixty-nine million, two hundred sixty-seven thousand, two hundred seven".