686933344 has 24 divisors (see below), whose sum is σ = 1362280248. Its totient is φ = 340957440.

The previous prime is 686933333. The next prime is 686933389. The reversal of 686933344 is 443339686.

It is a junction number, because it is equal to n+sod(n) for n = 686933294 and 686933303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73962 + ... + 82729.

It is an arithmetic number, because the mean of its divisors is an integer number (56761677).

Almost surely, 2^686933344 is an apocalyptic number.

It is an amenable number.

686933344 is a deficient number, since it is larger than the sum of its proper divisors (675346904).

686933344 is a wasteful number, since it uses less digits than its factorization.

686933344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156838 (or 156830 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 46.

The square root of 686933344 is about 26209.4132708079. The cubic root of 686933344 is about 882.3445331723.

The spelling of 686933344 in words is "six hundred eighty-six million, nine hundred thirty-three thousand, three hundred forty-four".