13649089 has 4 divisors (see below), whose sum is σ = 13774420. Its totient is φ = 13523760.

The previous prime is 13649063. The next prime is 13649093. The reversal of 13649089 is 98094631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9048064 + 4601025 = 3008^2 + 2145^2 .

It is a cyclic number.

It is not a de Polignac number, because 13649089 - 2⁵ = 13649057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13649059) 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, 62502 + ... + 62719.

It is an arithmetic number, because the mean of its divisors is an integer number (3443605).

Almost surely, 2^13649089 is an apocalyptic number.

It is an amenable number.

13649089 is a deficient number, since it is larger than the sum of its proper divisors (125331).

13649089 is a wasteful number, since it uses less digits than its factorization.

13649089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125330.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 13649089 is about 3694.4673499708. The cubic root of 13649089 is about 238.9834842085.

The spelling of 13649089 in words is "thirteen million, six hundred forty-nine thousand, eighty-nine".