13507889 has 2 divisors, whose sum is σ = 13507890. Its totient is φ = 13507888.

The previous prime is 13507883. The next prime is 13507903. The reversal of 13507889 is 98870531.

It is a happy number.

13507889 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11505664 + 2002225 = 3392^2 + 1415^2 .

It is a cyclic number.

It is not a de Polignac number, because 13507889 - 2¹² = 13503793 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13507883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6753944 + 6753945.

It is an arithmetic number, because the mean of its divisors is an integer number (6753945).

Almost surely, 2^13507889 is an apocalyptic number.

It is an amenable number.

13507889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13507889 is an equidigital number, since it uses as much as digits as its factorization.

13507889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 13507889 is about 3675.3080143030. The cubic root of 13507889 is about 238.1565302705.

The spelling of 13507889 in words is "thirteen million, five hundred seven thousand, eight hundred eighty-nine".