13439489 has 4 divisors (see below), whose sum is σ = 15359424. Its totient is φ = 11519556.

The previous prime is 13439483. The next prime is 13439497. The reversal of 13439489 is 98493431.

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 13439489 - 2⁸ = 13439233 is a prime.

It is a super-2 number, since 2×13439489² = 361239729162242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13439483) 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, 959957 + ... + 959970.

It is an arithmetic number, because the mean of its divisors is an integer number (3839856).

Almost surely, 2^13439489 is an apocalyptic number.

It is an amenable number.

13439489 is a deficient number, since it is larger than the sum of its proper divisors (1919935).

13439489 is an equidigital number, since it uses as much as digits as its factorization.

13439489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919934.

The product of its digits is 93312, while the sum is 41.

The square root of 13439489 is about 3665.9908619635. The cubic root of 13439489 is about 237.7538648341.

The spelling of 13439489 in words is "thirteen million, four hundred thirty-nine thousand, four hundred eighty-nine".