686969832 has 16 divisors (see below), whose sum is σ = 1717424640. Its totient is φ = 228989936.

The previous prime is 686969821. The next prime is 686969839. The reversal of 686969832 is 238969686.

686969832 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (686969839) 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, 14311848 + ... + 14311895.

It is an arithmetic number, because the mean of its divisors is an integer number (107339040).

Almost surely, 2^686969832 is an apocalyptic number.

It is an amenable number.

686969832 is an abundant number, since it is smaller than the sum of its proper divisors (1030454808).

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

686969832 is a wasteful number, since it uses less digits than its factorization.

686969832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28623752 (or 28623748 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 57.

The square root of 686969832 is about 26210.1093473492. The cubic root of 686969832 is about 882.3601554631.

The spelling of 686969832 in words is "six hundred eighty-six million, nine hundred sixty-nine thousand, eight hundred thirty-two".