2194679933 has 2 divisors, whose sum is σ = 2194679934. Its totient is φ = 2194679932.

The previous prime is 2194679909. The next prime is 2194679947. The reversal of 2194679933 is 3399764912.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2047834009 + 146845924 = 45253^2 + 12118^2 .

It is a cyclic number.

It is not a de Polignac number, because 2194679933 - 2²⁰ = 2193631357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2194679953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097339966 + 1097339967.

It is an arithmetic number, because the mean of its divisors is an integer number (1097339967).

Almost surely, 2^2194679933 is an apocalyptic number.

It is an amenable number.

2194679933 is a deficient number, since it is larger than the sum of its proper divisors (1).

2194679933 is an equidigital number, since it uses as much as digits as its factorization.

2194679933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2204496, while the sum is 53.

The square root of 2194679933 is about 46847.4111664668. The cubic root of 2194679933 is about 1299.5422319220.

The spelling of 2194679933 in words is "two billion, one hundred ninety-four million, six hundred seventy-nine thousand, nine hundred thirty-three".