1369889 has 4 divisors (see below), whose sum is σ = 1376256. Its totient is φ = 1363524.

The previous prime is 1369883. The next prime is 1369897. The reversal of 1369889 is 9889631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9889631 = 17 ⋅581743.

It is a cyclic number.

It is not a de Polignac number, because 1369889 - 2²⁰ = 321313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1369883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2849 + ... + 3294.

It is an arithmetic number, because the mean of its divisors is an integer number (344064).

2^1369889 is an apocalyptic number.

It is an amenable number.

1369889 is a deficient number, since it is larger than the sum of its proper divisors (6367).

1369889 is an equidigital number, since it uses as much as digits as its factorization.

1369889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6366.

The product of its digits is 93312, while the sum is 44.

The square root of 1369889 is about 1170.4225732615. The cubic root of 1369889 is about 111.0610545265.

The spelling of 1369889 in words is "one million, three hundred sixty-nine thousand, eight hundred eighty-nine".