22379779 has 2 divisors, whose sum is σ = 22379780. Its totient is φ = 22379778.

The previous prime is 22379723. The next prime is 22379789. The reversal of 22379779 is 97797322.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22379779 - 2⁹ = 22379267 is a prime.

It is not a weakly prime, because it can be changed into another prime (22379719) 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, 11189889 + 11189890.

It is an arithmetic number, because the mean of its divisors is an integer number (11189890).

Almost surely, 2^22379779 is an apocalyptic number.

22379779 is a deficient number, since it is larger than the sum of its proper divisors (1).

22379779 is an equidigital number, since it uses as much as digits as its factorization.

22379779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 333396, while the sum is 46.

The square root of 22379779 is about 4730.7271111321. The cubic root of 22379779 is about 281.8071002769.

The spelling of 22379779 in words is "twenty-two million, three hundred seventy-nine thousand, seven hundred seventy-nine".