22964813 has 2 divisors, whose sum is σ = 22964814. Its totient is φ = 22964812.

The previous prime is 22964803. The next prime is 22964849. The reversal of 22964813 is 31846922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17960644 + 5004169 = 4238^2 + 2237^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22964813 is a prime.

It is a super-3 number, since 3×22964813³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22964803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11482406 + 11482407.

It is an arithmetic number, because the mean of its divisors is an integer number (11482407).

Almost surely, 2^22964813 is an apocalyptic number.

It is an amenable number.

22964813 is a deficient number, since it is larger than the sum of its proper divisors (1).

22964813 is an equidigital number, since it uses as much as digits as its factorization.

22964813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 35.

The square root of 22964813 is about 4792.1616208137. The cubic root of 22964813 is about 284.2415991145.

The spelling of 22964813 in words is "twenty-two million, nine hundred sixty-four thousand, eight hundred thirteen".