22782323 has 2 divisors, whose sum is σ = 22782324. Its totient is φ = 22782322.

The previous prime is 22782281. The next prime is 22782359. The reversal of 22782323 is 32328722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22782323 - 2²⁴ = 6005107 is a prime.

It is equal to p_1435376 and since 22782323 and 1435376 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (22782623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11391161 + 11391162.

It is an arithmetic number, because the mean of its divisors is an integer number (11391162).

Almost surely, 2^22782323 is an apocalyptic number.

22782323 is a deficient number, since it is larger than the sum of its proper divisors (1).

22782323 is an equidigital number, since it uses as much as digits as its factorization.

22782323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 29.

The square root of 22782323 is about 4773.0831754747. The cubic root of 22782323 is about 283.4866868405.

The spelling of 22782323 in words is "twenty-two million, seven hundred eighty-two thousand, three hundred twenty-three".