22723087 has 2 divisors, whose sum is σ = 22723088. Its totient is φ = 22723086.

The previous prime is 22723039. The next prime is 22723109. The reversal of 22723087 is 78032722.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22723087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22723387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11361543 + 11361544.

It is an arithmetic number, because the mean of its divisors is an integer number (11361544).

Almost surely, 2^22723087 is an apocalyptic number.

22723087 is a deficient number, since it is larger than the sum of its proper divisors (1).

22723087 is an equidigital number, since it uses as much as digits as its factorization.

22723087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 22723087 is about 4766.8739232331. The cubic root of 22723087 is about 283.2407769960.

The spelling of 22723087 in words is "twenty-two million, seven hundred twenty-three thousand, eighty-seven".