3139939 has 8 divisors (see below), whose sum is σ = 3453120. Its totient is φ = 2831400.

The previous prime is 3139919. The next prime is 3139943. The reversal of 3139939 is 9399313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3139939 - 2⁵ = 3139907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3139898 and 3139907.

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 7 ways as a sum of consecutive naturals, for example, 352 + ... + 2530.

It is an arithmetic number, because the mean of its divisors is an integer number (431640).

Almost surely, 2^3139939 is an apocalyptic number.

3139939 is a deficient number, since it is larger than the sum of its proper divisors (313181).

3139939 is a wasteful number, since it uses less digits than its factorization.

3139939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321.

The product of its digits is 19683, while the sum is 37.

The square root of 3139939 is about 1771.9873024376. The cubic root of 3139939 is about 146.4334867957.

The spelling of 3139939 in words is "three million, one hundred thirty-nine thousand, nine hundred thirty-nine".