3230685921 has 16 divisors (see below), whose sum is σ = 4346431488. Its totient is φ = 2134434000.

The previous prime is 3230685911. The next prime is 3230685923. The reversal of 3230685921 is 1295860323.

It is not a de Polignac number, because 3230685921 - 2⁷ = 3230685793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3230685921.

It is not an unprimeable number, because it can be changed into a prime (3230685923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186970 + ... + 203516.

It is an arithmetic number, because the mean of its divisors is an integer number (271651968).

Almost surely, 2^3230685921 is an apocalyptic number.

It is an amenable number.

3230685921 is a deficient number, since it is larger than the sum of its proper divisors (1115745567).

3230685921 is a wasteful number, since it uses less digits than its factorization.

3230685921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17132.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 3230685921 is about 56839.1231547426. The cubic root of 3230685921 is about 1478.3079519732.

The spelling of 3230685921 in words is "three billion, two hundred thirty million, six hundred eighty-five thousand, nine hundred twenty-one".