1106389 has 4 divisors (see below), whose sum is σ = 1164640. Its totient is φ = 1048140.

The previous prime is 1106381. The next prime is 1106401. The reversal of 1106389 is 9836011.

It is a happy number.

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: 9836011 = 457 ⋅21523.

It is a cyclic number.

It is not a de Polignac number, because 1106389 - 2³ = 1106381 is a prime.

It is a Duffinian number.

1106389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1106381) 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, 29097 + ... + 29134.

It is an arithmetic number, because the mean of its divisors is an integer number (291160).

2^1106389 is an apocalyptic number.

1106389 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1106389 is a deficient number, since it is larger than the sum of its proper divisors (58251).

1106389 is an equidigital number, since it uses as much as digits as its factorization.

1106389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58250.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1106389 is about 1051.8502745163. The cubic root of 1106389 is about 103.4274815432.

The spelling of 1106389 in words is "one million, one hundred six thousand, three hundred eighty-nine".