22464857 has 2 divisors, whose sum is σ = 22464858. Its totient is φ = 22464856.

The previous prime is 22464851. The next prime is 22464887. The reversal of 22464857 is 75846422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16491721 + 5973136 = 4061^2 + 2444^2 .

It is a cyclic number.

It is not a de Polignac number, because 22464857 - 2¹⁴ = 22448473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22464857.

It is not a weakly prime, because it can be changed into another prime (22464851) 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, 11232428 + 11232429.

It is an arithmetic number, because the mean of its divisors is an integer number (11232429).

Almost surely, 2^22464857 is an apocalyptic number.

It is an amenable number.

22464857 is a deficient number, since it is larger than the sum of its proper divisors (1).

22464857 is an equidigital number, since it uses as much as digits as its factorization.

22464857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 38.

The square root of 22464857 is about 4739.7106451766. The cubic root of 22464857 is about 282.1637506109.

The spelling of 22464857 in words is "twenty-two million, four hundred sixty-four thousand, eight hundred fifty-seven".