13435889 has 2 divisors, whose sum is σ = 13435890. Its totient is φ = 13435888.

The previous prime is 13435867. The next prime is 13435901. The reversal of 13435889 is 98853431.

13435889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7795264 + 5640625 = 2792^2 + 2375^2 .

It is a cyclic number.

It is not a de Polignac number, because 13435889 - 2¹⁶ = 13370353 is a prime.

It is a super-2 number, since 2×13435889² = 361046226440642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13435819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6717944 + 6717945.

It is an arithmetic number, because the mean of its divisors is an integer number (6717945).

Almost surely, 2^13435889 is an apocalyptic number.

It is an amenable number.

13435889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13435889 is an equidigital number, since it uses as much as digits as its factorization.

13435889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 41.

The square root of 13435889 is about 3665.4998294912. The cubic root of 13435889 is about 237.7326341076.

The spelling of 13435889 in words is "thirteen million, four hundred thirty-five thousand, eight hundred eighty-nine".