1388359 has 4 divisors (see below), whose sum is σ = 1586704. Its totient is φ = 1190016.

The previous prime is 1388357. The next prime is 1388363. The reversal of 1388359 is 9538831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9538831 = 149 ⋅64019.

It is a cyclic number.

It is not a de Polignac number, because 1388359 - 2¹ = 1388357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99162 + ... + 99175.

It is an arithmetic number, because the mean of its divisors is an integer number (396676).

2^1388359 is an apocalyptic number.

1388359 is a deficient number, since it is larger than the sum of its proper divisors (198345).

1388359 is an equidigital number, since it uses as much as digits as its factorization.

1388359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198344.

The product of its digits is 25920, while the sum is 37.

The square root of 1388359 is about 1178.2864677149. The cubic root of 1388359 is about 111.5579675389.

The spelling of 1388359 in words is "one million, three hundred eighty-eight thousand, three hundred fifty-nine".