3139989 has 16 divisors (see below), whose sum is σ = 4344384. Its totient is φ = 2016000.

The previous prime is 3139979. The next prime is 3139991. The reversal of 3139989 is 9899313.

It is a happy number.

It is not a de Polignac number, because 3139989 - 2⁷ = 3139861 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3139989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3139909) 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, 12909 + ... + 13149.

It is an arithmetic number, because the mean of its divisors is an integer number (271524).

Almost surely, 2^3139989 is an apocalyptic number.

It is an amenable number.

3139989 is a deficient number, since it is larger than the sum of its proper divisors (1204395).

3139989 is a wasteful number, since it uses less digits than its factorization.

3139989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388.

The product of its digits is 52488, while the sum is 42.

The square root of 3139989 is about 1772.0014108347. The cubic root of 3139989 is about 146.4342640545.

The spelling of 3139989 in words is "three million, one hundred thirty-nine thousand, nine hundred eighty-nine".