1368787 has 4 divisors (see below), whose sum is σ = 1564336. Its totient is φ = 1173240.

The previous prime is 1368761. The next prime is 1368791. The reversal of 1368787 is 7878631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7878631 = 97 ⋅81223.

It is a cyclic number.

It is not a de Polignac number, because 1368787 - 2⁷ = 1368659 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1368727) 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, 97764 + ... + 97777.

It is an arithmetic number, because the mean of its divisors is an integer number (391084).

2^1368787 is an apocalyptic number.

1368787 is a deficient number, since it is larger than the sum of its proper divisors (195549).

1368787 is an equidigital number, since it uses as much as digits as its factorization.

1368787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195548.

The product of its digits is 56448, while the sum is 40.

The square root of 1368787 is about 1169.9517084051. The cubic root of 1368787 is about 111.0312657102.

The spelling of 1368787 in words is "one million, three hundred sixty-eight thousand, seven hundred eighty-seven".