2219923 has 2 divisors, whose sum is σ = 2219924. Its totient is φ = 2219922.

The previous prime is 2219887. The next prime is 2219939. The reversal of 2219923 is 3299122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2219923 - 2⁹ = 2219411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2219891 and 2219900.

It is not a weakly prime, because it can be changed into another prime (2219953) 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, 1109961 + 1109962.

It is an arithmetic number, because the mean of its divisors is an integer number (1109962).

2^2219923 is an apocalyptic number.

2219923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2219923 is an equidigital number, since it uses as much as digits as its factorization.

2219923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 28.

The square root of 2219923 is about 1489.9406028429. The cubic root of 2219923 is about 130.4505667549.

It can be divided in two parts, 22199 and 23, that added together give a palindrome (22222).

The spelling of 2219923 in words is "two million, two hundred nineteen thousand, nine hundred twenty-three".