31876013 has 8 divisors (see below), whose sum is σ = 34406400. Its totient is φ = 29356848.

The previous prime is 31876001. The next prime is 31876063. The reversal of 31876013 is 31067813.

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

It is a cyclic number.

It is not a de Polignac number, because 31876013 - 2⁴ = 31875997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31876063) 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, 3668 + ... + 8786.

It is an arithmetic number, because the mean of its divisors is an integer number (4300800).

Almost surely, 2^31876013 is an apocalyptic number.

It is an amenable number.

31876013 is a deficient number, since it is larger than the sum of its proper divisors (2530387).

31876013 is a wasteful number, since it uses less digits than its factorization.

31876013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5611.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 31876013 is about 5645.8846073932. The cubic root of 31876013 is about 317.0696440640.

The spelling of 31876013 in words is "thirty-one million, eight hundred seventy-six thousand, thirteen".