669869076 has 24 divisors (see below), whose sum is σ = 1563466464. Its totient is φ = 223227040.

The previous prime is 669869063. The next prime is 669869087. The reversal of 669869076 is 670968966.

669869076 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 60706 + ... + 70886.

It is an arithmetic number, because the mean of its divisors is an integer number (65144436).

Almost surely, 2^669869076 is an apocalyptic number.

It is an amenable number.

669869076 is an abundant number, since it is smaller than the sum of its proper divisors (893597388).

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

669869076 is a wasteful number, since it uses less digits than its factorization.

669869076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15671 (or 15669 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 57.

The square root of 669869076 is about 25881.8290698320. The cubic root of 669869076 is about 874.9770120763.

The spelling of 669869076 in words is "six hundred sixty-nine million, eight hundred sixty-nine thousand, seventy-six".