686022328 has 24 divisors (see below), whose sum is σ = 1322017200. Its totient is φ = 333735264.

The previous prime is 686022319. The next prime is 686022367. The reversal of 686022328 is 823220686.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 20368 + ... + 42271.

It is an arithmetic number, because the mean of its divisors is an integer number (55084050).

Almost surely, 2^686022328 is an apocalyptic number.

It is an amenable number.

686022328 is a deficient number, since it is larger than the sum of its proper divisors (635994872).

686022328 is a wasteful number, since it uses less digits than its factorization.

686022328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62719 (or 62678 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 686022328 is about 26192.0279474500. The cubic root of 686022328 is about 881.9543033659.

The spelling of 686022328 in words is "six hundred eighty-six million, twenty-two thousand, three hundred twenty-eight".