669462684 has 24 divisors (see below), whose sum is σ = 1704087168. Its totient is φ = 202867440.

The previous prime is 669462671. The next prime is 669462691. The reversal of 669462684 is 486264966.

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, 2535712 + ... + 2535975.

It is an arithmetic number, because the mean of its divisors is an integer number (71003632).

Almost surely, 2^669462684 is an apocalyptic number.

It is an amenable number.

669462684 is an abundant number, since it is smaller than the sum of its proper divisors (1034624484).

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

669462684 is a wasteful number, since it uses less digits than its factorization.

669462684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071705 (or 5071703 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 51.

The square root of 669462684 is about 25873.9769652831. The cubic root of 669462684 is about 874.8000344138.

It can be divided in two parts, 6694 and 62684, that added together give a triangular number (69378 = T₃₇₂).

The spelling of 669462684 in words is "six hundred sixty-nine million, four hundred sixty-two thousand, six hundred eighty-four".