3889281213 has 12 divisors (see below), whose sum is σ = 5629298688. Its totient is φ = 2587570440.

The previous prime is 3889281181. The next prime is 3889281241. The reversal of 3889281213 is 3121829883.

It is a happy number.

It is not a de Polignac number, because 3889281213 - 2⁵ = 3889281181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3889281293) 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, 435645 + ... + 444482.

It is an arithmetic number, because the mean of its divisors is an integer number (469108224).

Almost surely, 2^3889281213 is an apocalyptic number.

It is an amenable number.

3889281213 is a deficient number, since it is larger than the sum of its proper divisors (1740017475).

3889281213 is a wasteful number, since it uses less digits than its factorization.

3889281213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880624 (or 880621 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 3889281213 is about 62364.1019577770. The cubic root of 3889281213 is about 1572.6175401872.

The spelling of 3889281213 in words is "three billion, eight hundred eighty-nine million, two hundred eighty-one thousand, two hundred thirteen".