22774361 has 2 divisors, whose sum is σ = 22774362. Its totient is φ = 22774360.

The previous prime is 22774343. The next prime is 22774363. The reversal of 22774361 is 16347722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20430400 + 2343961 = 4520^2 + 1531^2 .

It is a cyclic number.

It is not a de Polignac number, because 22774361 - 2²² = 18580057 is a prime.

Together with 22774363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22774363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11387180 + 11387181.

It is an arithmetic number, because the mean of its divisors is an integer number (11387181).

Almost surely, 2^22774361 is an apocalyptic number.

It is an amenable number.

22774361 is a deficient number, since it is larger than the sum of its proper divisors (1).

22774361 is an equidigital number, since it uses as much as digits as its factorization.

22774361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 32.

The square root of 22774361 is about 4772.2490505002. The cubic root of 22774361 is about 283.4536585435.

The spelling of 22774361 in words is "twenty-two million, seven hundred seventy-four thousand, three hundred sixty-one".