22343857 has 2 divisors, whose sum is σ = 22343858. Its totient is φ = 22343856.

The previous prime is 22343843. The next prime is 22343869. The reversal of 22343857 is 75834322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21196816 + 1147041 = 4604^2 + 1071^2 .

It is a cyclic number.

It is not a de Polignac number, because 22343857 - 2¹⁹ = 21819569 is a prime.

It is not a weakly prime, because it can be changed into another prime (22343257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11171928 + 11171929.

It is an arithmetic number, because the mean of its divisors is an integer number (11171929).

Almost surely, 2^22343857 is an apocalyptic number.

It is an amenable number.

22343857 is a deficient number, since it is larger than the sum of its proper divisors (1).

22343857 is an equidigital number, since it uses as much as digits as its factorization.

22343857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 34.

The square root of 22343857 is about 4726.9289184417. The cubic root of 22343857 is about 281.6562424317.

The spelling of 22343857 in words is "twenty-two million, three hundred forty-three thousand, eight hundred fifty-seven".