686652324 has 36 divisors (see below), whose sum is σ = 1690963344. Its totient is φ = 216836208.

The previous prime is 686652313. The next prime is 686652349. The reversal of 686652324 is 423256686.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74922 + ... + 83585.

It is an arithmetic number, because the mean of its divisors is an integer number (46971204).

Almost surely, 2^686652324 is an apocalyptic number.

It is an amenable number.

686652324 is an abundant number, since it is smaller than the sum of its proper divisors (1004311020).

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

686652324 is a wasteful number, since it uses less digits than its factorization.

686652324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158552 (or 158531 counting only the distinct ones).

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

The square root of 686652324 is about 26204.0516714496. The cubic root of 686652324 is about 882.2241962755.

The spelling of 686652324 in words is "six hundred eighty-six million, six hundred fifty-two thousand, three hundred twenty-four".