1388875 has 16 divisors (see below), whose sum is σ = 1782144. Its totient is φ = 1080000.

The previous prime is 1388873. The next prime is 1388887. The reversal of 1388875 is 5788831.

It is not a de Polignac number, because 1388875 - 2¹ = 1388873 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4990 + ... + 5260.

It is an arithmetic number, because the mean of its divisors is an integer number (111384).

2^1388875 is an apocalyptic number.

1388875 is a deficient number, since it is larger than the sum of its proper divisors (393269).

1388875 is an equidigital number, since it uses as much as digits as its factorization.

1388875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 317 counting only the distinct ones).

The product of its digits is 53760, while the sum is 40.

The square root of 1388875 is about 1178.5054094063. The cubic root of 1388875 is about 111.5717864386.

It can be divided in two parts, 13 and 88875, that added together give a palindrome (88888).

The spelling of 1388875 in words is "one million, three hundred eighty-eight thousand, eight hundred seventy-five".