22464397 has 2 divisors, whose sum is σ = 22464398. Its totient is φ = 22464396.

The previous prime is 22464391. The next prime is 22464413. The reversal of 22464397 is 79346422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20666116 + 1798281 = 4546^2 + 1341^2 .

It is a cyclic number.

It is not a de Polignac number, because 22464397 - 2³ = 22464389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22464391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11232198 + 11232199.

It is an arithmetic number, because the mean of its divisors is an integer number (11232199).

Almost surely, 2^22464397 is an apocalyptic number.

It is an amenable number.

22464397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22464397 is an equidigital number, since it uses as much as digits as its factorization.

22464397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 37.

The square root of 22464397 is about 4739.6621187591. The cubic root of 22464397 is about 282.1618246960.

The spelling of 22464397 in words is "twenty-two million, four hundred sixty-four thousand, three hundred ninety-seven".