1367859 has 4 divisors (see below), whose sum is σ = 1823816. Its totient is φ = 911904.

The previous prime is 1367857. The next prime is 1367869. The reversal of 1367859 is 9587631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9587631 = 3 ⋅3195877.

It is not a de Polignac number, because 1367859 - 2¹ = 1367857 is a prime.

It is a D-number.

It is a Duffinian number.

1367859 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1367851) 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 3 ways as a sum of consecutive naturals, for example, 227974 + ... + 227979.

It is an arithmetic number, because the mean of its divisors is an integer number (455954).

2^1367859 is an apocalyptic number.

1367859 is a deficient number, since it is larger than the sum of its proper divisors (455957).

1367859 is an equidigital number, since it uses as much as digits as its factorization.

1367859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455956.

The product of its digits is 45360, while the sum is 39.

The square root of 1367859 is about 1169.5550435956. Note that the first 3 decimals coincide. The cubic root of 1367859 is about 111.0061679877.

The spelling of 1367859 in words is "one million, three hundred sixty-seven thousand, eight hundred fifty-nine".