669727104 has 64 divisors (see below), whose sum is σ = 1883625840. Its totient is φ = 210108416.

The previous prime is 669727063. The next prime is 669727147. The reversal of 669727104 is 401727966.

669727104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent 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, 44769 + ... + 57824.

Almost surely, 2^669727104 is an apocalyptic number.

669727104 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

669727104 is an abundant number, since it is smaller than the sum of its proper divisors (1213898736).

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

669727104 is a wasteful number, since it uses less digits than its factorization.

669727104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102627 (or 102615 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 669727104 is about 25879.0862280723. The cubic root of 669727104 is about 874.9151935222.

The spelling of 669727104 in words is "six hundred sixty-nine million, seven hundred twenty-seven thousand, one hundred four".