3221493863 has 16 divisors (see below), whose sum is σ = 3953193984. Its totient is φ = 2562241920.

The previous prime is 3221493853. The next prime is 3221493893. The reversal of 3221493863 is 3683941223.

It is not a de Polignac number, because 3221493863 - 2¹⁰ = 3221492839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3221493863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221493853) 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, 182195 + ... + 199092.

It is an arithmetic number, because the mean of its divisors is an integer number (247074624).

Almost surely, 2^3221493863 is an apocalyptic number.

3221493863 is a deficient number, since it is larger than the sum of its proper divisors (731700121).

3221493863 is a wasteful number, since it uses less digits than its factorization.

3221493863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381382.

The product of its digits is 186624, while the sum is 41.

The square root of 3221493863 is about 56758.2052482282. The cubic root of 3221493863 is about 1476.9045760494.

The spelling of 3221493863 in words is "three billion, two hundred twenty-one million, four hundred ninety-three thousand, eight hundred sixty-three".