1108389 has 8 divisors (see below), whose sum is σ = 1505952. Its totient is φ = 724880.

The previous prime is 1108369. The next prime is 1108397. The reversal of 1108389 is 9838011.

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

It is a cyclic number.

It is not a de Polignac number, because 1108389 - 2⁵ = 1108357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1108369) 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, 3327 + ... + 3644.

It is an arithmetic number, because the mean of its divisors is an integer number (188244).

2^1108389 is an apocalyptic number.

It is an amenable number.

1108389 is a deficient number, since it is larger than the sum of its proper divisors (397563).

1108389 is an equidigital number, since it uses as much as digits as its factorization.

1108389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7027.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1108389 is about 1052.8005509117. The cubic root of 1108389 is about 103.4897653769.

The spelling of 1108389 in words is "one million, one hundred eight thousand, three hundred eighty-nine".