1163747479 has 4 divisors (see below), whose sum is σ = 1163819160. Its totient is φ = 1163675800.

The previous prime is 1163747449. The next prime is 1163747489. The reversal of 1163747479 is 9747473611.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1163747479 - 2¹⁵ = 1163714711 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163747419) 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, 1437 + ... + 48265.

It is an arithmetic number, because the mean of its divisors is an integer number (290954790).

Almost surely, 2^1163747479 is an apocalyptic number.

1163747479 is a deficient number, since it is larger than the sum of its proper divisors (71681).

1163747479 is an equidigital number, since it uses as much as digits as its factorization.

1163747479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71680.

The product of its digits is 889056, while the sum is 49.

The square root of 1163747479 is about 34113.7432569339. The cubic root of 1163747479 is about 1051.8478358350.

The spelling of 1163747479 in words is "one billion, one hundred sixty-three million, seven hundred forty-seven thousand, four hundred seventy-nine".