1122979 has 8 divisors (see below), whose sum is σ = 1319472. Its totient is φ = 942240.

The previous prime is 1122941. The next prime is 1122983. The reversal of 1122979 is 9792211.

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

It is not a de Polignac number, because 1122979 - 2⁹ = 1122467 is a prime.

It is a super-2 number, since 2×1122979² = 2522163668882, which contains 22 as substring.

It is a d-powerful number, because it can be written as 1 + 1 + 2¹³ + 2¹⁹ + 9⁵ + 7 + 9⁶ .

1122979 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1122979.

It is not an unprimeable number, because it can be changed into a prime (1122179) 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, 3784 + ... + 4069.

It is an arithmetic number, because the mean of its divisors is an integer number (164934).

2^1122979 is an apocalyptic number.

1122979 is a deficient number, since it is larger than the sum of its proper divisors (196493).

1122979 is a wasteful number, since it uses less digits than its factorization.

1122979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7877.

The product of its digits is 2268, while the sum is 31.

The square root of 1122979 is about 1059.7070349866. The cubic root of 1122979 is about 103.9418745711.

The spelling of 1122979 in words is "one million, one hundred twenty-two thousand, nine hundred seventy-nine".