1375387 has 8 divisors (see below), whose sum is σ = 1490720. Its totient is φ = 1261440.

The previous prime is 1375379. The next prime is 1375411. The reversal of 1375387 is 7835731.

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

It is a cyclic number.

It is not a de Polignac number, because 1375387 - 2³ = 1375379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375307) 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 7 ways as a sum of consecutive naturals, for example, 2914 + ... + 3352.

It is an arithmetic number, because the mean of its divisors is an integer number (186340).

2^1375387 is an apocalyptic number.

1375387 is a deficient number, since it is larger than the sum of its proper divisors (115333).

1375387 is a wasteful number, since it uses less digits than its factorization.

1375387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693.

The product of its digits is 17640, while the sum is 34.

The square root of 1375387 is about 1172.7689457007. The cubic root of 1375387 is about 111.2094360383.

The spelling of 1375387 in words is "one million, three hundred seventy-five thousand, three hundred eighty-seven".