686786332 has 12 divisors (see below), whose sum is σ = 1272574800. Its totient is φ = 323193536.

The previous prime is 686786329. The next prime is 686786339. The reversal of 686786332 is 233687686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686786339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5049832 + ... + 5049967.

It is an arithmetic number, because the mean of its divisors is an integer number (106047900).

Almost surely, 2^686786332 is an apocalyptic number.

It is an amenable number.

686786332 is a deficient number, since it is larger than the sum of its proper divisors (585788468).

686786332 is a wasteful number, since it uses less digits than its factorization.

686786332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10099820 (or 10099818 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 49.

The square root of 686786332 is about 26206.6085558586. The cubic root of 686786332 is about 882.2815845664.

The spelling of 686786332 in words is "six hundred eighty-six million, seven hundred eighty-six thousand, three hundred thirty-two".