31714889 has 2 divisors, whose sum is σ = 31714890. Its totient is φ = 31714888.

The previous prime is 31714873. The next prime is 31714913. The reversal of 31714889 is 98841713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31449664 + 265225 = 5608^2 + 515^2 .

It is an emirp because it is prime and its reverse (98841713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31714889 - 2⁴ = 31714873 is a prime.

It is not a weakly prime, because it can be changed into another prime (31714289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15857444 + 15857445.

It is an arithmetic number, because the mean of its divisors is an integer number (15857445).

Almost surely, 2^31714889 is an apocalyptic number.

It is an amenable number.

31714889 is a deficient number, since it is larger than the sum of its proper divisors (1).

31714889 is an equidigital number, since it uses as much as digits as its factorization.

31714889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 41.

The square root of 31714889 is about 5631.5973755232. The cubic root of 31714889 is about 316.5345097043.

The spelling of 31714889 in words is "thirty-one million, seven hundred fourteen thousand, eight hundred eighty-nine".