22744871 has 2 divisors, whose sum is σ = 22744872. Its totient is φ = 22744870.

The previous prime is 22744859. The next prime is 22744901. The reversal of 22744871 is 17844722.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22744871 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22744831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11372435 + 11372436.

It is an arithmetic number, because the mean of its divisors is an integer number (11372436).

Almost surely, 2^22744871 is an apocalyptic number.

22744871 is a deficient number, since it is larger than the sum of its proper divisors (1).

22744871 is an equidigital number, since it uses as much as digits as its factorization.

22744871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25088, while the sum is 35.

The square root of 22744871 is about 4769.1583114843. The cubic root of 22744871 is about 283.3312598080.

The spelling of 22744871 in words is "twenty-two million, seven hundred forty-four thousand, eight hundred seventy-one".