22637423 has 2 divisors, whose sum is σ = 22637424. Its totient is φ = 22637422.

The previous prime is 22637411. The next prime is 22637431. The reversal of 22637423 is 32473622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22637423 - 2¹² = 22633327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22637323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11318711 + 11318712.

It is an arithmetic number, because the mean of its divisors is an integer number (11318712).

Almost surely, 2^22637423 is an apocalyptic number.

22637423 is a deficient number, since it is larger than the sum of its proper divisors (1).

22637423 is an equidigital number, since it uses as much as digits as its factorization.

22637423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 29.

The square root of 22637423 is about 4757.8800951684. The cubic root of 22637423 is about 282.8843980058.

The spelling of 22637423 in words is "twenty-two million, six hundred thirty-seven thousand, four hundred twenty-three".