1159879 has 6 divisors (see below), whose sum is σ = 1349304. Its totient is φ = 994140.

The previous prime is 1159877. The next prime is 1159889. The reversal of 1159879 is 9789511.

It is a happy number.

It is not a de Polignac number, because 1159879 - 2¹ = 1159877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11787 + ... + 11884.

It is an arithmetic number, because the mean of its divisors is an integer number (224884).

2^1159879 is an apocalyptic number.

1159879 is a deficient number, since it is larger than the sum of its proper divisors (189425).

1159879 is an equidigital number, since it uses as much as digits as its factorization.

1159879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23685 (or 23678 counting only the distinct ones).

The product of its digits is 22680, while the sum is 40.

The square root of 1159879 is about 1076.9767871222. The cubic root of 1159879 is about 105.0681039657.

The spelling of 1159879 in words is "one million, one hundred fifty-nine thousand, eight hundred seventy-nine".