1163427839 has 8 divisors (see below), whose sum is σ = 1330218528. Its totient is φ = 996783840.

The previous prime is 1163427821. The next prime is 1163427841. The reversal of 1163427839 is 9387243611.

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

It is a cyclic number.

It is not a de Polignac number, because 1163427839 - 2⁸ = 1163427583 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 1163427839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163427869) 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, 19112 + ... + 51885.

It is an arithmetic number, because the mean of its divisors is an integer number (166277316).

Almost surely, 2^1163427839 is an apocalyptic number.

1163427839 is a deficient number, since it is larger than the sum of its proper divisors (166790689).

1163427839 is an equidigital number, since it uses as much as digits as its factorization.

1163427839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73345.

The product of its digits is 217728, while the sum is 44.

The square root of 1163427839 is about 34109.0580198281. The cubic root of 1163427839 is about 1051.7515252994.

The spelling of 1163427839 in words is "one billion, one hundred sixty-three million, four hundred twenty-seven thousand, eight hundred thirty-nine".