31874089 has 8 divisors (see below), whose sum is σ = 34400520. Its totient is φ = 29358336.

The previous prime is 31874069. The next prime is 31874093. The reversal of 31874089 is 98047813.

It can be written as a sum of positive squares in 4 ways, for example, as 514089 + 31360000 = 717^2 + 5600^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31874089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31874069) 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 7 ways as a sum of consecutive naturals, for example, 4209 + ... + 9025.

It is an arithmetic number, because the mean of its divisors is an integer number (4300065).

Almost surely, 2^31874089 is an apocalyptic number.

It is an amenable number.

31874089 is a deficient number, since it is larger than the sum of its proper divisors (2526431).

31874089 is a wasteful number, since it uses less digits than its factorization.

31874089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5339.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 31874089 is about 5645.7142152256. The cubic root of 31874089 is about 317.0632646142.

The spelling of 31874089 in words is "thirty-one million, eight hundred seventy-four thousand, eighty-nine".