13616089 has 4 divisors (see below), whose sum is σ = 13624740. Its totient is φ = 13607440.

The previous prime is 13616081. The next prime is 13616107. The reversal of 13616089 is 98061631.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98061631 = 1187 ⋅82613.

It can be written as a sum of positive squares in 2 ways, for example, as 2673225 + 10942864 = 1635^2 + 3308^2 .

It is a cyclic number.

It is not a de Polignac number, because 13616089 - 2³ = 13616081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13616081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222 + ... + 5359.

It is an arithmetic number, because the mean of its divisors is an integer number (3406185).

Almost surely, 2^13616089 is an apocalyptic number.

It is an amenable number.

13616089 is a deficient number, since it is larger than the sum of its proper divisors (8651).

13616089 is an equidigital number, since it uses as much as digits as its factorization.

13616089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8650.

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

The square root of 13616089 is about 3689.9985094848. The cubic root of 13616089 is about 238.7907285030.

The spelling of 13616089 in words is "thirteen million, six hundred sixteen thousand, eighty-nine".