31620941 has 8 divisors (see below), whose sum is σ = 34538400. Its totient is φ = 28710640.

The previous prime is 31620937. The next prime is 31620943. The reversal of 31620941 is 14902613.

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 31620941 - 2² = 31620937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31620941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31620943) 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, 12350 + ... + 14688.

It is an arithmetic number, because the mean of its divisors is an integer number (4317300).

Almost surely, 2^31620941 is an apocalyptic number.

It is an amenable number.

31620941 is a deficient number, since it is larger than the sum of its proper divisors (2917459).

31620941 is a wasteful number, since it uses less digits than its factorization.

31620941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3579.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 31620941 is about 5623.2500389010. The cubic root of 31620941 is about 316.2216472262.

The spelling of 31620941 in words is "thirty-one million, six hundred twenty thousand, nine hundred forty-one".