22864861 has 2 divisors, whose sum is σ = 22864862. Its totient is φ = 22864860.

The previous prime is 22864843. The next prime is 22864879. The reversal of 22864861 is 16846822.

It is a balanced prime because it is at equal distance from previous prime (22864843) and next prime (22864879).

It can be written as a sum of positive squares in only one way, i.e., 20520900 + 2343961 = 4530^2 + 1531^2 .

It is a cyclic number.

It is not a de Polignac number, because 22864861 - 2⁹ = 22864349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22864861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22864811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11432430 + 11432431.

It is an arithmetic number, because the mean of its divisors is an integer number (11432431).

Almost surely, 2^22864861 is an apocalyptic number.

It is an amenable number.

22864861 is a deficient number, since it is larger than the sum of its proper divisors (1).

22864861 is an equidigital number, since it uses as much as digits as its factorization.

22864861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 37.

The square root of 22864861 is about 4781.7215519099. The cubic root of 22864861 is about 283.8286218897.

The spelling of 22864861 in words is "twenty-two million, eight hundred sixty-four thousand, eight hundred sixty-one".