22735897 has 2 divisors, whose sum is σ = 22735898. Its totient is φ = 22735896.

The previous prime is 22735879. The next prime is 22735903. The reversal of 22735897 is 79853722.

Together with previous prime (22735879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16801801 + 5934096 = 4099^2 + 2436^2 .

It is a cyclic number.

It is not a de Polignac number, because 22735897 - 2¹¹ = 22733849 is a prime.

It is not a weakly prime, because it can be changed into another prime (22735877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11367948 + 11367949.

It is an arithmetic number, because the mean of its divisors is an integer number (11367949).

Almost surely, 2^22735897 is an apocalyptic number.

It is an amenable number.

22735897 is a deficient number, since it is larger than the sum of its proper divisors (1).

22735897 is an equidigital number, since it uses as much as digits as its factorization.

22735897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 43.

The square root of 22735897 is about 4768.2173817896. The cubic root of 22735897 is about 283.2939920771.

It can be divided in two parts, 22735 and 897, that added together give a palindrome (23632).

The spelling of 22735897 in words is "twenty-two million, seven hundred thirty-five thousand, eight hundred ninety-seven".