22664527 has 2 divisors, whose sum is σ = 22664528. Its totient is φ = 22664526.

The previous prime is 22664491. The next prime is 22664531. The reversal of 22664527 is 72546622.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22664527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22664492 and 22664501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22664567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11332263 + 11332264.

It is an arithmetic number, because the mean of its divisors is an integer number (11332264).

Almost surely, 2^22664527 is an apocalyptic number.

22664527 is a deficient number, since it is larger than the sum of its proper divisors (1).

22664527 is an equidigital number, since it uses as much as digits as its factorization.

22664527 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 34.

The square root of 22664527 is about 4760.7275704455. The cubic root of 22664527 is about 282.9972530293.

The spelling of 22664527 in words is "twenty-two million, six hundred sixty-four thousand, five hundred twenty-seven".