3139685 has 16 divisors (see below), whose sum is σ = 3974400. Its totient is φ = 2377536.

The previous prime is 3139681. The next prime is 3139699. The reversal of 3139685 is 5869313.

It is not a de Polignac number, because 3139685 - 2² = 3139681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3139681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8372 + ... + 8738.

It is an arithmetic number, because the mean of its divisors is an integer number (248400).

Almost surely, 2^3139685 is an apocalyptic number.

It is an amenable number.

3139685 is a deficient number, since it is larger than the sum of its proper divisors (834715).

3139685 is a wasteful number, since it uses less digits than its factorization.

3139685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460.

The product of its digits is 19440, while the sum is 35.

The square root of 3139685 is about 1771.9156300456. The cubic root of 3139685 is about 146.4295381937.

The spelling of 3139685 in words is "three million, one hundred thirty-nine thousand, six hundred eighty-five".