13498989 has 8 divisors (see below), whose sum is σ = 20569920. Its totient is φ = 7713696.

The previous prime is 13498973. The next prime is 13498993. The reversal of 13498989 is 98989431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13498989 - 2⁴ = 13498973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13498909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321384 + ... + 321425.

It is an arithmetic number, because the mean of its divisors is an integer number (2571240).

Almost surely, 2^13498989 is an apocalyptic number.

It is an amenable number.

13498989 is a deficient number, since it is larger than the sum of its proper divisors (7070931).

13498989 is an equidigital number, since it uses as much as digits as its factorization.

13498989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642819.

The product of its digits is 559872, while the sum is 51.

The square root of 13498989 is about 3674.0970319250. The cubic root of 13498989 is about 238.1042137118.

The spelling of 13498989 in words is "thirteen million, four hundred ninety-eight thousand, nine hundred eighty-nine".