22863649 has 2 divisors, whose sum is σ = 22863650. Its totient is φ = 22863648.

The previous prime is 22863641. The next prime is 22863661. The reversal of 22863649 is 94636822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18835600 + 4028049 = 4340^2 + 2007^2 .

It is a cyclic number.

It is not a de Polignac number, because 22863649 - 2³ = 22863641 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22863641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11431824 + 11431825.

It is an arithmetic number, because the mean of its divisors is an integer number (11431825).

Almost surely, 2^22863649 is an apocalyptic number.

It is an amenable number.

22863649 is a deficient number, since it is larger than the sum of its proper divisors (1).

22863649 is an equidigital number, since it uses as much as digits as its factorization.

22863649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 40.

The square root of 22863649 is about 4781.5948176315. The cubic root of 22863649 is about 283.8236068236.

The spelling of 22863649 in words is "twenty-two million, eight hundred sixty-three thousand, six hundred forty-nine".