686465232 has 40 divisors (see below), whose sum is σ = 1774392384. Its totient is φ = 228689664.

The previous prime is 686465189. The next prime is 686465239. The reversal of 686465232 is 232564686.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686465239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115813 + ... + 121595.

Almost surely, 2^686465232 is an apocalyptic number.

It is an amenable number.

686465232 is an abundant number, since it is smaller than the sum of its proper divisors (1087927152).

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

686465232 is a wasteful number, since it uses less digits than its factorization.

686465232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8267 (or 8261 counting only the distinct ones).

The product of its digits is 414720, while the sum is 42.

The square root of 686465232 is about 26200.4815222927. The cubic root of 686465232 is about 882.1440625228.

The spelling of 686465232 in words is "six hundred eighty-six million, four hundred sixty-five thousand, two hundred thirty-two".