31379117 has 8 divisors (see below), whose sum is σ = 39122112. Its totient is φ = 24451200.

The previous prime is 31379057. The next prime is 31379129. The reversal of 31379117 is 71197313.

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 31379117 - 2¹⁴ = 31362733 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 (31379167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203684 + ... + 203837.

It is an arithmetic number, because the mean of its divisors is an integer number (4890264).

Almost surely, 2^31379117 is an apocalyptic number.

It is an amenable number.

31379117 is a deficient number, since it is larger than the sum of its proper divisors (7742995).

31379117 is a wasteful number, since it uses less digits than its factorization.

31379117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407539.

The product of its digits is 3969, while the sum is 32.

The square root of 31379117 is about 5601.7066149523. The cubic root of 31379117 is about 315.4134723195.

The spelling of 31379117 in words is "thirty-one million, three hundred seventy-nine thousand, one hundred seventeen".