13733989 has 4 divisors (see below), whose sum is σ = 13751424. Its totient is φ = 13716556.

The previous prime is 13733981. The next prime is 13733999. The reversal of 13733989 is 98933731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13733989 - 2³ = 13733981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13733981) 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, 7477 + ... + 9130.

It is an arithmetic number, because the mean of its divisors is an integer number (3437856).

Almost surely, 2^13733989 is an apocalyptic number.

It is an amenable number.

13733989 is a deficient number, since it is larger than the sum of its proper divisors (17435).

13733989 is an equidigital number, since it uses as much as digits as its factorization.

13733989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17434.

The product of its digits is 122472, while the sum is 43.

The square root of 13733989 is about 3705.9396919000. The cubic root of 13733989 is about 239.4779683448.

The spelling of 13733989 in words is "thirteen million, seven hundred thirty-three thousand, nine hundred eighty-nine".