1389013 has 8 divisors (see below), whose sum is σ = 1450080. Its totient is φ = 1328880.

The previous prime is 1389007. The next prime is 1389083. The reversal of 1389013 is 3109831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1389013 is a prime.

It is a super-2 number, since 2×1389013² = 3858714228338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1389083) 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, 6006 + ... + 6232.

It is an arithmetic number, because the mean of its divisors is an integer number (181260).

2^1389013 is an apocalyptic number.

It is an amenable number.

1389013 is a deficient number, since it is larger than the sum of its proper divisors (61067).

1389013 is a wasteful number, since it uses less digits than its factorization.

1389013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1389013 is about 1178.5639566863. The cubic root of 1389013 is about 111.5754816107.

The spelling of 1389013 in words is "one million, three hundred eighty-nine thousand, thirteen".