3131679 has 16 divisors (see below), whose sum is σ = 4310240. Its totient is φ = 2021760.

The previous prime is 3131671. The next prime is 3131699. The reversal of 3131679 is 9761313.

It is not a de Polignac number, because 3131679 - 2³ = 3131671 is a prime.

It is a Duffinian number.

3131679 is an undulating number in base 13.

3131679 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131671) 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, 19869 + ... + 20025.

It is an arithmetic number, because the mean of its divisors is an integer number (269390).

Almost surely, 2^3131679 is an apocalyptic number.

3131679 is a deficient number, since it is larger than the sum of its proper divisors (1178561).

3131679 is a wasteful number, since it uses less digits than its factorization.

3131679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330.

The product of its digits is 3402, while the sum is 30.

The square root of 3131679 is about 1769.6550511328. The cubic root of 3131679 is about 146.3049702046.

The spelling of 3131679 in words is "three million, one hundred thirty-one thousand, six hundred seventy-nine".