13902289 has 2 divisors, whose sum is σ = 13902290. Its totient is φ = 13902288.

The previous prime is 13902263. The next prime is 13902293. The reversal of 13902289 is 98220931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6969600 + 6932689 = 2640^2 + 2633^2 .

It is a cyclic number.

It is not a de Polignac number, because 13902289 - 2⁵ = 13902257 is a prime.

It is not a weakly prime, because it can be changed into another prime (13902689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6951144 + 6951145.

It is an arithmetic number, because the mean of its divisors is an integer number (6951145).

Almost surely, 2^13902289 is an apocalyptic number.

It is an amenable number.

13902289 is a deficient number, since it is larger than the sum of its proper divisors (1).

13902289 is an equidigital number, since it uses as much as digits as its factorization.

13902289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 13902289 is about 3728.5773426335. The cubic root of 13902289 is about 240.4522087543.

The spelling of 13902289 in words is "thirteen million, nine hundred two thousand, two hundred eighty-nine".