22660087 has 2 divisors, whose sum is σ = 22660088. Its totient is φ = 22660086.

The previous prime is 22660067. The next prime is 22660177. The reversal of 22660087 is 78006622.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22660087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22660067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11330043 + 11330044.

It is an arithmetic number, because the mean of its divisors is an integer number (11330044).

Almost surely, 2^22660087 is an apocalyptic number.

22660087 is a deficient number, since it is larger than the sum of its proper divisors (1).

22660087 is an equidigital number, since it uses as much as digits as its factorization.

22660087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 22660087 is about 4760.2612323275. The cubic root of 22660087 is about 282.9787720221.

The spelling of 22660087 in words is "twenty-two million, six hundred sixty thousand, eighty-seven".