1122879 has 4 divisors (see below), whose sum is σ = 1497176. Its totient is φ = 748584.

The previous prime is 1122857. The next prime is 1122887. The reversal of 1122879 is 9782211.

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

It is not a de Polignac number, because 1122879 - 2⁸ = 1122623 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122899) 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, 187144 + ... + 187149.

It is an arithmetic number, because the mean of its divisors is an integer number (374294).

2^1122879 is an apocalyptic number.

1122879 is a deficient number, since it is larger than the sum of its proper divisors (374297).

1122879 is an equidigital number, since it uses as much as digits as its factorization.

1122879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374296.

The product of its digits is 2016, while the sum is 30.

The square root of 1122879 is about 1059.6598510843. The cubic root of 1122879 is about 103.9387891777.

The spelling of 1122879 in words is "one million, one hundred twenty-two thousand, eight hundred seventy-nine".