1167981873 has 16 divisors (see below), whose sum is σ = 1615075200. Its totient is φ = 749907200.

The previous prime is 1167981847. The next prime is 1167981887. The reversal of 1167981873 is 3781897611.

It is a cyclic number.

It is not a de Polignac number, because 1167981873 - 2⁶ = 1167981809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1167981803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18148 + ... + 51626.

It is an arithmetic number, because the mean of its divisors is an integer number (100942200).

Almost surely, 2^1167981873 is an apocalyptic number.

It is an amenable number.

1167981873 is a deficient number, since it is larger than the sum of its proper divisors (447093327).

1167981873 is a wasteful number, since it uses less digits than its factorization.

1167981873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33912.

The product of its digits is 508032, while the sum is 51.

The square root of 1167981873 is about 34175.7497796318. The cubic root of 1167981873 is about 1053.1220375348.

The spelling of 1167981873 in words is "one billion, one hundred sixty-seven million, nine hundred eighty-one thousand, eight hundred seventy-three".