669572834 has 16 divisors (see below), whose sum is σ = 1159206336. Its totient is φ = 284118000.

The previous prime is 669572819. The next prime is 669572843. The reversal of 669572834 is 438275966.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235352 + ... + 238179.

It is an arithmetic number, because the mean of its divisors is an integer number (72450396).

Almost surely, 2^669572834 is an apocalyptic number.

669572834 is a deficient number, since it is larger than the sum of its proper divisors (489633502).

669572834 is a wasteful number, since it uses less digits than its factorization.

669572834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473641.

The product of its digits is 2177280, while the sum is 50.

The square root of 669572834 is about 25876.1054643082. The cubic root of 669572834 is about 874.8480101719.

The spelling of 669572834 in words is "six hundred sixty-nine million, five hundred seventy-two thousand, eight hundred thirty-four".