1167842879 has 4 divisors (see below), whose sum is σ = 1334677584. Its totient is φ = 1001008176.

The previous prime is 1167842839. The next prime is 1167842903. The reversal of 1167842879 is 9782487611.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-1167842879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1167842879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167842839) 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, 83417342 + ... + 83417355.

It is an arithmetic number, because the mean of its divisors is an integer number (333669396).

Almost surely, 2^1167842879 is an apocalyptic number.

1167842879 is a deficient number, since it is larger than the sum of its proper divisors (166834705).

1167842879 is an equidigital number, since it uses as much as digits as its factorization.

1167842879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166834704.

The product of its digits is 1354752, while the sum is 53.

The square root of 1167842879 is about 34173.7162011977. The cubic root of 1167842879 is about 1053.0802607873.

The spelling of 1167842879 in words is "one billion, one hundred sixty-seven million, eight hundred forty-two thousand, eight hundred seventy-nine".