22726663 has 2 divisors, whose sum is σ = 22726664. Its totient is φ = 22726662.

The previous prime is 22726657. The next prime is 22726667. The reversal of 22726663 is 36662722.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22726663 is a prime.

It is a super-2 number, since 2×22726663² = 1033002422231138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22726667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11363331 + 11363332.

It is an arithmetic number, because the mean of its divisors is an integer number (11363332).

Almost surely, 2^22726663 is an apocalyptic number.

22726663 is a deficient number, since it is larger than the sum of its proper divisors (1).

22726663 is an equidigital number, since it uses as much as digits as its factorization.

22726663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 34.

The square root of 22726663 is about 4767.2489970632. The cubic root of 22726663 is about 283.2556343653.

The spelling of 22726663 in words is "twenty-two million, seven hundred twenty-six thousand, six hundred sixty-three".