22393087 has 2 divisors, whose sum is σ = 22393088. Its totient is φ = 22393086.

The previous prime is 22393081. The next prime is 22393109. The reversal of 22393087 is 78039322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22393087 - 2²³ = 14004479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22393081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11196543 + 11196544.

It is an arithmetic number, because the mean of its divisors is an integer number (11196544).

Almost surely, 2^22393087 is an apocalyptic number.

22393087 is a deficient number, since it is larger than the sum of its proper divisors (1).

22393087 is an equidigital number, since it uses as much as digits as its factorization.

22393087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 22393087 is about 4732.1334512036. The cubic root of 22393087 is about 281.8629475036.

The spelling of 22393087 in words is "twenty-two million, three hundred ninety-three thousand, eighty-seven".