691883432 has 16 divisors (see below), whose sum is σ = 1299308640. Its totient is φ = 345401136.

The previous prime is 691883429. The next prime is 691883449. The reversal of 691883432 is 234388196.

691883432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62108 + ... + 72395.

It is an arithmetic number, because the mean of its divisors is an integer number (81206790).

Almost surely, 2^691883432 is an apocalyptic number.

It is an amenable number.

691883432 is a deficient number, since it is larger than the sum of its proper divisors (607425208).

691883432 is a wasteful number, since it uses less digits than its factorization.

691883432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135152 (or 135148 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 691883432 is about 26303.6771573862. The cubic root of 691883432 is about 884.4588739840.

The spelling of 691883432 in words is "six hundred ninety-one million, eight hundred eighty-three thousand, four hundred thirty-two".