1799981223 has 8 divisors (see below), whose sum is σ = 2403984000. Its totient is φ = 1197982968.

The previous prime is 1799981191. The next prime is 1799981299. The reversal of 1799981223 is 3221899971.

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

It is not a de Polignac number, because 1799981223 - 2⁵ = 1799981191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1799981423) 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, 499033 + ... + 502626.

It is an arithmetic number, because the mean of its divisors is an integer number (300498000).

Almost surely, 2^1799981223 is an apocalyptic number.

1799981223 is a deficient number, since it is larger than the sum of its proper divisors (604002777).

1799981223 is a wasteful number, since it uses less digits than its factorization.

1799981223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002261.

The product of its digits is 489888, while the sum is 51.

The square root of 1799981223 is about 42426.1855815486. The cubic root of 1799981223 is about 1216.4361692664.

The spelling of 1799981223 in words is "one billion, seven hundred ninety-nine million, nine hundred eighty-one thousand, two hundred twenty-three".