13403389 has 4 divisors (see below), whose sum is σ = 13453120. Its totient is φ = 13353660.

The previous prime is 13403371. The next prime is 13403393. The reversal of 13403389 is 98330431.

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 13403389 - 2⁹ = 13402877 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 13403389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13403399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24459 + ... + 25000.

It is an arithmetic number, because the mean of its divisors is an integer number (3363280).

Almost surely, 2^13403389 is an apocalyptic number.

It is an amenable number.

13403389 is a deficient number, since it is larger than the sum of its proper divisors (49731).

13403389 is an equidigital number, since it uses as much as digits as its factorization.

13403389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49730.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 13403389 is about 3661.0639164046. The cubic root of 13403389 is about 237.5407959467.

The spelling of 13403389 in words is "thirteen million, four hundred three thousand, three hundred eighty-nine".