13635089 has 6 divisors (see below), whose sum is σ = 14764806. Its totient is φ = 12586080.

The previous prime is 13635079. The next prime is 13635107. The reversal of 13635089 is 98053631.

It can be written as a sum of positive squares in 3 ways, for example, as 1849600 + 11785489 = 1360^2 + 3433^2 .

It is not a de Polignac number, because 13635089 - 2²⁰ = 12586513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13635059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40172 + ... + 40509.

It is an arithmetic number, because the mean of its divisors is an integer number (2460801).

Almost surely, 2^13635089 is an apocalyptic number.

It is an amenable number.

13635089 is a deficient number, since it is larger than the sum of its proper divisors (1129717).

13635089 is an equidigital number, since it uses as much as digits as its factorization.

13635089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80707 (or 80694 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 13635089 is about 3692.5721387672. The cubic root of 13635089 is about 238.9017470474.

The spelling of 13635089 in words is "thirteen million, six hundred thirty-five thousand, eighty-nine".