22974949 has 2 divisors, whose sum is σ = 22974950. Its totient is φ = 22974948.

The previous prime is 22974947. The next prime is 22974967. The reversal of 22974949 is 94947922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12830724 + 10144225 = 3582^2 + 3185^2 .

It is a cyclic number.

It is not a de Polignac number, because 22974949 - 2¹ = 22974947 is a prime.

Together with 22974947, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22974899 and 22974908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22974947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11487474 + 11487475.

It is an arithmetic number, because the mean of its divisors is an integer number (11487475).

Almost surely, 2^22974949 is an apocalyptic number.

It is an amenable number.

22974949 is a deficient number, since it is larger than the sum of its proper divisors (1).

22974949 is an equidigital number, since it uses as much as digits as its factorization.

22974949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 22974949 is about 4793.2190644701. The cubic root of 22974949 is about 284.2834116196.

The spelling of 22974949 in words is "twenty-two million, nine hundred seventy-four thousand, nine hundred forty-nine".