1164784223 has 4 divisors (see below), whose sum is σ = 1233300960. Its totient is φ = 1096267488.

The previous prime is 1164784163. The next prime is 1164784249. The reversal of 1164784223 is 3224874611.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1164784223 is a prime.

It is a super-2 number, since 2×1164784223² = 2713444572299427458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1164784123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34258343 + ... + 34258376.

It is an arithmetic number, because the mean of its divisors is an integer number (308325240).

Almost surely, 2^1164784223 is an apocalyptic number.

1164784223 is a deficient number, since it is larger than the sum of its proper divisors (68516737).

1164784223 is an equidigital number, since it uses as much as digits as its factorization.

1164784223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68516736.

The product of its digits is 64512, while the sum is 38.

The square root of 1164784223 is about 34128.9352749247. The cubic root of 1164784223 is about 1052.1600952336.

The spelling of 1164784223 in words is "one billion, one hundred sixty-four million, seven hundred eighty-four thousand, two hundred twenty-three".