13988089 has 2 divisors, whose sum is σ = 13988090. Its totient is φ = 13988088.

The previous prime is 13988081. The next prime is 13988119. The reversal of 13988089 is 98088931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11155600 + 2832489 = 3340^2 + 1683^2 .

It is a cyclic number.

It is not a de Polignac number, because 13988089 - 2³ = 13988081 is a prime.

It is not a weakly prime, because it can be changed into another prime (13988081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6994044 + 6994045.

It is an arithmetic number, because the mean of its divisors is an integer number (6994045).

Almost surely, 2^13988089 is an apocalyptic number.

It is an amenable number.

13988089 is a deficient number, since it is larger than the sum of its proper divisors (1).

13988089 is an equidigital number, since it uses as much as digits as its factorization.

13988089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 13988089 is about 3740.0653737602. The cubic root of 13988089 is about 240.9458565376.

The spelling of 13988089 in words is "thirteen million, nine hundred eighty-eight thousand, eighty-nine".