686963356 has 24 divisors (see below), whose sum is σ = 1283635584. Its totient is φ = 320905200.

The previous prime is 686963267. The next prime is 686963357. The reversal of 686963356 is 653369686.

686963356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686963357) 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, 82870 + ... + 90781.

It is an arithmetic number, because the mean of its divisors is an integer number (53484816).

Almost surely, 2^686963356 is an apocalyptic number.

It is an amenable number.

686963356 is a deficient number, since it is larger than the sum of its proper divisors (596672228).

686963356 is a wasteful number, since it uses less digits than its factorization.

686963356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173721 (or 173719 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 52.

The square root of 686963356 is about 26209.9858069401. The cubic root of 686963356 is about 882.3573828123.

It can be divided in two parts, 6869 and 63356, that added together give a square (70225 = 265²).

The spelling of 686963356 in words is "six hundred eighty-six million, nine hundred sixty-three thousand, three hundred fifty-six".