22843949 has 2 divisors, whose sum is σ = 22843950. Its totient is φ = 22843948.

The previous prime is 22843943. The next prime is 22843969. The reversal of 22843949 is 94934822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20187049 + 2656900 = 4493^2 + 1630^2 .

It is a cyclic number.

It is not a de Polignac number, because 22843949 - 2⁸ = 22843693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22843943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11421974 + 11421975.

It is an arithmetic number, because the mean of its divisors is an integer number (11421975).

Almost surely, 2^22843949 is an apocalyptic number.

It is an amenable number.

22843949 is a deficient number, since it is larger than the sum of its proper divisors (1).

22843949 is an equidigital number, since it uses as much as digits as its factorization.

22843949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The square root of 22843949 is about 4779.5343915490. The cubic root of 22843949 is about 283.7420664461.

The spelling of 22843949 in words is "twenty-two million, eight hundred forty-three thousand, nine hundred forty-nine".