1375867 has 4 divisors (see below), whose sum is σ = 1381216. Its totient is φ = 1370520.

The previous prime is 1375853. The next prime is 1375877. The reversal of 1375867 is 7685731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7685731 = 241 ⋅31891.

It is a cyclic number.

It is not a de Polignac number, because 1375867 - 2⁷ = 1375739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375807) 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, 2268 + ... + 2809.

It is an arithmetic number, because the mean of its divisors is an integer number (345304).

2^1375867 is an apocalyptic number.

1375867 is a deficient number, since it is larger than the sum of its proper divisors (5349).

1375867 is an equidigital number, since it uses as much as digits as its factorization.

1375867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5348.

The product of its digits is 35280, while the sum is 37.

The square root of 1375867 is about 1172.9735717398. The cubic root of 1375867 is about 111.2223716268. Note that the first 3 decimals are identical.

The spelling of 1375867 in words is "one million, three hundred seventy-five thousand, eight hundred sixty-seven".