13912489 has 8 divisors (see below), whose sum is σ = 14744520. Its totient is φ = 13104000.

The previous prime is 13912471. The next prime is 13912499. The reversal of 13912489 is 98421931.

It can be written as a sum of positive squares in 4 ways, for example, as 1010025 + 12902464 = 1005^2 + 3592^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13912489 - 2⁹ = 13911977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13912439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4662 + ... + 7039.

It is an arithmetic number, because the mean of its divisors is an integer number (1843065).

Almost surely, 2^13912489 is an apocalyptic number.

It is an amenable number.

13912489 is a deficient number, since it is larger than the sum of its proper divisors (832031).

13912489 is a wasteful number, since it uses less digits than its factorization.

13912489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11771.

The product of its digits is 15552, while the sum is 37.

The square root of 13912489 is about 3729.9449057593. The cubic root of 13912489 is about 240.5110003426.

The spelling of 13912489 in words is "thirteen million, nine hundred twelve thousand, four hundred eighty-nine".