2197808823 has 32 divisors (see below), whose sum is σ = 3470169600. Its totient is φ = 1211273856.

The previous prime is 2197808771. The next prime is 2197808827. The reversal of 2197808823 is 3288087912.

It is not a de Polignac number, because 2197808823 - 2⁶ = 2197808759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197808827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48933 + ... + 82401.

It is an arithmetic number, because the mean of its divisors is an integer number (108442800).

Almost surely, 2^2197808823 is an apocalyptic number.

2197808823 is a deficient number, since it is larger than the sum of its proper divisors (1272360777).

2197808823 is a wasteful number, since it uses less digits than its factorization.

2197808823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33591.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 2197808823 is about 46880.7937539458. The cubic root of 2197808823 is about 1300.1595115906.

The spelling of 2197808823 in words is "two billion, one hundred ninety-seven million, eight hundred eight thousand, eight hundred twenty-three".