13412389 has 8 divisors (see below), whose sum is σ = 13933080. Its totient is φ = 12900096.

The previous prime is 13412387. The next prime is 13412407. The reversal of 13412389 is 98321431.

It can be written as a sum of positive squares in 4 ways, for example, as 688900 + 12723489 = 830^2 + 3567^2 .

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 13412389 - 2¹ = 13412387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13412389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13412387) 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, 1257 + ... + 5329.

It is an arithmetic number, because the mean of its divisors is an integer number (1741635).

Almost surely, 2^13412389 is an apocalyptic number.

It is an amenable number.

13412389 is a deficient number, since it is larger than the sum of its proper divisors (520691).

13412389 is an equidigital number, since it uses as much as digits as its factorization.

13412389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4199.

The product of its digits is 5184, while the sum is 31.

The square root of 13412389 is about 3662.2928610366. The cubic root of 13412389 is about 237.5939513797.

The spelling of 13412389 in words is "thirteen million, four hundred twelve thousand, three hundred eighty-nine".