1022998823 has 12 divisors (see below), whose sum is σ = 1298203272. Its totient is φ = 797141520.

The previous prime is 1022998819. The next prime is 1022998883. The reversal of 1022998823 is 3288992201.

It is not a de Polignac number, because 1022998823 - 2² = 1022998819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022998883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 948440 + ... + 949517.

It is an arithmetic number, because the mean of its divisors is an integer number (108183606).

Almost surely, 2^1022998823 is an apocalyptic number.

1022998823 is a deficient number, since it is larger than the sum of its proper divisors (275204449).

1022998823 is a wasteful number, since it uses less digits than its factorization.

1022998823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897982 (or 1897975 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 1022998823 is about 31984.3527838223. The cubic root of 1022998823 is about 1007.6082421823.

The spelling of 1022998823 in words is "one billion, twenty-two million, nine hundred ninety-eight thousand, eight hundred twenty-three".