1366887 has 8 divisors (see below), whose sum is σ = 1828336. Its totient is φ = 908352.

The previous prime is 1366877. The next prime is 1366889. The reversal of 1366887 is 7886631.

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

It is not a de Polignac number, because 1366887 - 2¹⁵ = 1334119 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 (1366889) 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, 873 + ... + 1869.

It is an arithmetic number, because the mean of its divisors is an integer number (228542).

2^1366887 is an apocalyptic number.

1366887 is a deficient number, since it is larger than the sum of its proper divisors (461449).

1366887 is an equidigital number, since it uses as much as digits as its factorization.

1366887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457.

The product of its digits is 48384, while the sum is 39.

The square root of 1366887 is about 1169.1394271001. The cubic root of 1366887 is about 110.9798681126.

The spelling of 1366887 in words is "one million, three hundred sixty-six thousand, eight hundred eighty-seven".