22668623 has 2 divisors, whose sum is σ = 22668624. Its totient is φ = 22668622.

The previous prime is 22668589. The next prime is 22668641. The reversal of 22668623 is 32686622.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22668623 - 2¹² = 22664527 is a prime.

It is a super-2 number, since 2×22668623² = 1027732937432258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22668673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11334311 + 11334312.

It is an arithmetic number, because the mean of its divisors is an integer number (11334312).

Almost surely, 2^22668623 is an apocalyptic number.

22668623 is a deficient number, since it is larger than the sum of its proper divisors (1).

22668623 is an equidigital number, since it uses as much as digits as its factorization.

22668623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The square root of 22668623 is about 4761.1577373576. The cubic root of 22668623 is about 283.0143000345.

The spelling of 22668623 in words is "twenty-two million, six hundred sixty-eight thousand, six hundred twenty-three".