2193022879 has 4 divisors (see below), whose sum is σ = 2200166584. Its totient is φ = 2185879176.

The previous prime is 2193022859. The next prime is 2193022901. The reversal of 2193022879 is 9782203912.

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

It is a cyclic number.

It is not a de Polignac number, because 2193022879 - 2⁵ = 2193022847 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 (2193022859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3571392 + ... + 3572005.

It is an arithmetic number, because the mean of its divisors is an integer number (550041646).

Almost surely, 2^2193022879 is an apocalyptic number.

2193022879 is a deficient number, since it is larger than the sum of its proper divisors (7143705).

2193022879 is an equidigital number, since it uses as much as digits as its factorization.

2193022879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7143704.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 2193022879 is about 46829.7221751315. The cubic root of 2193022879 is about 1299.2150841660.

The spelling of 2193022879 in words is "two billion, one hundred ninety-three million, twenty-two thousand, eight hundred seventy-nine".