3239644655 has 12 divisors (see below), whose sum is σ = 4209622200. Its totient is φ = 2392352352.

The previous prime is 3239644633. The next prime is 3239644657. The reversal of 3239644655 is 5564469323.

3239644655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3239644655 - 2⁶ = 3239644591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3239644657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1916105 + ... + 1917794.

It is an arithmetic number, because the mean of its divisors is an integer number (350801850).

Almost surely, 2^3239644655 is an apocalyptic number.

3239644655 is a deficient number, since it is larger than the sum of its proper divisors (969977545).

3239644655 is a wasteful number, since it uses less digits than its factorization.

3239644655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833930 (or 3833917 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 47.

The square root of 3239644655 is about 56917.8764097889. The cubic root of 3239644655 is about 1479.6731465631.

The spelling of 3239644655 in words is "three billion, two hundred thirty-nine million, six hundred forty-four thousand, six hundred fifty-five".