686327232 has 28 divisors (see below), whose sum is σ = 1815907976. Its totient is φ = 228775680.

The previous prime is 686327189. The next prime is 686327267. The reversal of 686327232 is 232723686.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1787119 + ... + 1787502.

Almost surely, 2^686327232 is an apocalyptic number.

It is an amenable number.

686327232 is an abundant number, since it is smaller than the sum of its proper divisors (1129580744).

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

686327232 is a wasteful number, since it uses less digits than its factorization.

686327232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3574636 (or 3574626 counting only the distinct ones).

The product of its digits is 145152, while the sum is 39.

The square root of 686327232 is about 26197.8478505392. The cubic root of 686327232 is about 882.0849461328.

The spelling of 686327232 in words is "six hundred eighty-six million, three hundred twenty-seven thousand, two hundred thirty-two".