1389913 has 16 divisors (see below), whose sum is σ = 1693440. Its totient is φ = 1115136.

The previous prime is 1389911. The next prime is 1389917. The reversal of 1389913 is 3199831.

It is a cyclic number.

It is not a de Polignac number, because 1389913 - 2¹ = 1389911 is a prime.

Its product of digits (5832) is a multiple of the sum of its prime divisors (216).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389911) 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 15 ways as a sum of consecutive naturals, for example, 14281 + ... + 14377.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2^1389913 is an apocalyptic number.

It is an amenable number.

1389913 is a deficient number, since it is larger than the sum of its proper divisors (303527).

1389913 is an equidigital number, since it uses as much as digits as its factorization.

1389913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216.

The product of its digits is 5832, while the sum is 34.

The square root of 1389913 is about 1178.9457154594. The cubic root of 1389913 is about 111.5995745585.

The spelling of 1389913 in words is "one million, three hundred eighty-nine thousand, nine hundred thirteen".