1992998223 has 16 divisors (see below), whose sum is σ = 2972412000. Its totient is φ = 1319745600.

The previous prime is 1992998219. The next prime is 1992998239. The reversal of 1992998223 is 3228992991.

It is not a de Polignac number, because 1992998223 - 2² = 1992998219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1992998223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992998243) 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, 243678 + ... + 251723.

It is an arithmetic number, because the mean of its divisors is an integer number (185775750).

Almost surely, 2^1992998223 is an apocalyptic number.

1992998223 is a deficient number, since it is larger than the sum of its proper divisors (979413777).

1992998223 is a wasteful number, since it uses less digits than its factorization.

1992998223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495559 (or 495553 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 1992998223 is about 44643.0086687714. The cubic root of 1992998223 is about 1258.4490497485.

The spelling of 1992998223 in words is "one billion, nine hundred ninety-two million, nine hundred ninety-eight thousand, two hundred twenty-three".