669257107 has 8 divisors (see below), whose sum is σ = 675769856. Its totient is φ = 662764032.

The previous prime is 669257101. The next prime is 669257131. The reversal of 669257107 is 701752966.

669257107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 669257107 - 2⁷ = 669256979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (669257101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68713 + ... + 77845.

It is an arithmetic number, because the mean of its divisors is an integer number (84471232).

Almost surely, 2^669257107 is an apocalyptic number.

669257107 is a deficient number, since it is larger than the sum of its proper divisors (6512749).

669257107 is a wasteful number, since it uses less digits than its factorization.

669257107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9837.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 669257107 is about 25870.0040007728. The cubic root of 669257107 is about 874.7104814124.

The spelling of 669257107 in words is "six hundred sixty-nine million, two hundred fifty-seven thousand, one hundred seven".