3239903812 has 18 divisors (see below), whose sum is σ = 5749226574. Its totient is φ = 1597281120.

The previous prime is 3239903803. The next prime is 3239903819. The reversal of 3239903812 is 2183099323.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2840463616 + 399440196 = 53296^2 + 19986^2 .

It is a super-2 number, since 2×3239903812² = 20993953422024262688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3239903819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 970987 + ... + 974317.

Almost surely, 2^3239903812 is an apocalyptic number.

It is an amenable number.

3239903812 is a deficient number, since it is larger than the sum of its proper divisors (2509322762).

3239903812 is an frugal number, since it uses more digits than its factorization.

3239903812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6739 (or 3406 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 3239903812 is about 56920.1529513054. The cubic root of 3239903812 is about 1479.7126012431.

The spelling of 3239903812 in words is "three billion, two hundred thirty-nine million, nine hundred three thousand, eight hundred twelve".