22779373 has 2 divisors, whose sum is σ = 22779374. Its totient is φ = 22779372.

The previous prime is 22779359. The next prime is 22779391. The reversal of 22779373 is 37397722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19386409 + 3392964 = 4403^2 + 1842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22779373 is a prime.

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22779343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11389686 + 11389687.

It is an arithmetic number, because the mean of its divisors is an integer number (11389687).

Almost surely, 2^22779373 is an apocalyptic number.

It is an amenable number.

22779373 is a deficient number, since it is larger than the sum of its proper divisors (1).

22779373 is an equidigital number, since it uses as much as digits as its factorization.

22779373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 111132, while the sum is 40.

The square root of 22779373 is about 4772.7741408954. The cubic root of 22779373 is about 283.4744504263.

The spelling of 22779373 in words is "twenty-two million, seven hundred seventy-nine thousand, three hundred seventy-three".