1108399 has 4 divisors (see below), whose sum is σ = 1114336. Its totient is φ = 1102464.

The previous prime is 1108397. The next prime is 1108423. The reversal of 1108399 is 9938011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1108399 - 2¹ = 1108397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1108399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1108397) 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, 2679 + ... + 3064.

It is an arithmetic number, because the mean of its divisors is an integer number (278584).

2^1108399 is an apocalyptic number.

1108399 is a deficient number, since it is larger than the sum of its proper divisors (5937).

1108399 is an equidigital number, since it uses as much as digits as its factorization.

1108399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5936.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 1108399 is about 1052.8053001386. The cubic root of 1108399 is about 103.4900766078.

The spelling of 1108399 in words is "one million, one hundred eight thousand, three hundred ninety-nine".