1367889 has 8 divisors (see below), whose sum is σ = 1829280. Its totient is φ = 909216.

The previous prime is 1367887. The next prime is 1367893. The reversal of 1367889 is 9887631.

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

It is not a de Polignac number, because 1367889 - 2¹ = 1367887 is a prime.

It is a super-2 number, since 2×1367889² = 3742240632642, which contains 22 as substring.

1367889 is a lucky number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1367889.

It is not an unprimeable number, because it can be changed into a prime (1367881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1482 + ... + 2220.

It is an arithmetic number, because the mean of its divisors is an integer number (228660).

2^1367889 is an apocalyptic number.

It is an amenable number.

1367889 is a deficient number, since it is larger than the sum of its proper divisors (461391).

1367889 is an equidigital number, since it uses as much as digits as its factorization.

1367889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359.

The product of its digits is 72576, while the sum is 42.

The square root of 1367889 is about 1169.5678689157. The cubic root of 1367889 is about 111.0069795141.

The spelling of 1367889 in words is "one million, three hundred sixty-seven thousand, eight hundred eighty-nine".