3213804872 has 16 divisors (see below), whose sum is σ = 6026718060. Its totient is φ = 1606680064.

The previous prime is 3213804859. The next prime is 3213804887. The reversal of 3213804872 is 2784083123.

It can be written as a sum of positive squares in 2 ways, for example, as 3199712356 + 14092516 = 56566^2 + 3754^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44768 + ... + 91824.

Almost surely, 2^3213804872 is an apocalyptic number.

It is an amenable number.

3213804872 is a deficient number, since it is larger than the sum of its proper divisors (2812913188).

3213804872 is a wasteful number, since it uses less digits than its factorization.

3213804872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55600 (or 55596 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 3213804872 is about 56690.4301624181. The cubic root of 3213804872 is about 1475.7286254758.

Adding to 3213804872 its reverse (2784083123), we get a palindrome (5997887995).

The spelling of 3213804872 in words is "three billion, two hundred thirteen million, eight hundred four thousand, eight hundred seventy-two".