1105979 has 6 divisors (see below), whose sum is σ = 1286604. Its totient is φ = 947940.

The previous prime is 1105963. The next prime is 1105997. The reversal of 1105979 is 9795011.

It is not a de Polignac number, because 1105979 - 2⁴ = 1105963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1105919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11237 + ... + 11334.

It is an arithmetic number, because the mean of its divisors is an integer number (214434).

2^1105979 is an apocalyptic number.

1105979 is a deficient number, since it is larger than the sum of its proper divisors (180625).

1105979 is an equidigital number, since it uses as much as digits as its factorization.

1105979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22585 (or 22578 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 1105979 is about 1051.6553617987. The cubic root of 1105979 is about 103.4147040883.

Adding to 1105979 its sum of digits (32), we get a palindrome (1106011).

The spelling of 1105979 in words is "one million, one hundred five thousand, nine hundred seventy-nine".