3231688 has 32 divisors (see below), whose sum is σ = 6370560. Its totient is φ = 1535040.

The previous prime is 3231671. The next prime is 3231689. The reversal of 3231688 is 8861323.

3231688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (3231689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20506 + ... + 20662.

It is an arithmetic number, because the mean of its divisors is an integer number (199080).

Almost surely, 2^3231688 is an apocalyptic number.

It is an amenable number.

3231688 is a deficient number, since it is larger than the sum of its proper divisors (3138872).

3231688 is a wasteful number, since it uses less digits than its factorization.

3231688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 273 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 3231688 is about 1797.6896283842. The cubic root of 3231688 is about 147.8460781048.

The spelling of 3231688 in words is "three million, two hundred thirty-one thousand, six hundred eighty-eight".