669473695 has 16 divisors (see below), whose sum is σ = 878574240. Its totient is φ = 485683200.

The previous prime is 669473689. The next prime is 669473699. The reversal of 669473695 is 596374966.

It is a de Polignac number, because none of the positive numbers 2^k-669473695 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669473699) 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, 7615 + ... + 37375.

It is an arithmetic number, because the mean of its divisors is an integer number (54910890).

Almost surely, 2^669473695 is an apocalyptic number.

669473695 is a deficient number, since it is larger than the sum of its proper divisors (209100545).

669473695 is a wasteful number, since it uses less digits than its factorization.

669473695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30186.

The product of its digits is 7348320, while the sum is 55.

The square root of 669473695 is about 25874.1897457679. The cubic root of 669473695 is about 874.8048304841.

The spelling of 669473695 in words is "six hundred sixty-nine million, four hundred seventy-three thousand, six hundred ninety-five".