1356887 has 4 divisors (see below), whose sum is σ = 1550736. Its totient is φ = 1163040.

The previous prime is 1356877. The next prime is 1356899. The reversal of 1356887 is 7886531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7886531 = 229 ⋅34439.

It is a cyclic number.

It is not a de Polignac number, because 1356887 - 2⁴ = 1356871 is a prime.

It is a super-2 number, since 2×1356887² = 3682284661538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1356887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1356857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96914 + ... + 96927.

It is an arithmetic number, because the mean of its divisors is an integer number (387684).

2^1356887 is an apocalyptic number.

1356887 is a deficient number, since it is larger than the sum of its proper divisors (193849).

1356887 is an equidigital number, since it uses as much as digits as its factorization.

1356887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193848.

The product of its digits is 40320, while the sum is 38.

The square root of 1356887 is about 1164.8549265896. The cubic root of 1356887 is about 110.7085664555.

It can be divided in two parts, 13568 and 87, that multiplied together give a triangular number (1180416 = T₁₅₃₆).

The spelling of 1356887 in words is "one million, three hundred fifty-six thousand, eight hundred eighty-seven".