669319086 has 32 divisors (see below), whose sum is σ = 1374392448. Its totient is φ = 217212320.

The previous prime is 669319081. The next prime is 669319153. The reversal of 669319086 is 680913966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669319081) 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, 33625 + ... + 49691.

It is an arithmetic number, because the mean of its divisors is an integer number (42949764).

Almost surely, 2^669319086 is an apocalyptic number.

669319086 is an abundant number, since it is smaller than the sum of its proper divisors (705073362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

669319086 is a wasteful number, since it uses less digits than its factorization.

669319086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16256.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 669319086 is about 25871.2018661677. The cubic root of 669319086 is about 874.7374824991.

The spelling of 669319086 in words is "six hundred sixty-nine million, three hundred nineteen thousand, eighty-six".