1100979 has 24 divisors (see below), whose sum is σ = 1798160. Its totient is φ = 665280.

The previous prime is 1100977. The next prime is 1101071. The reversal of 1100979 is 9790011.

It is not a de Polignac number, because 1100979 - 2¹ = 1100977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

1100979 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1100977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3099 + ... + 3435.

2^1100979 is an apocalyptic number.

1100979 is a deficient number, since it is larger than the sum of its proper divisors (697181).

1100979 is a wasteful number, since it uses less digits than its factorization.

1100979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 27.

The square root of 1100979 is about 1049.2754643086. The cubic root of 1100979 is about 103.2586267750.

The spelling of 1100979 in words is "one million, one hundred thousand, nine hundred seventy-nine".