22059997 has 2 divisors, whose sum is σ = 22059998. Its totient is φ = 22059996.

The previous prime is 22059977. The next prime is 22060001. The reversal of 22059997 is 79995022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11909401 + 10150596 = 3451^2 + 3186^2 .

It is a cyclic number.

It is not a de Polignac number, because 22059997 - 2¹¹ = 22057949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22059907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11029998 + 11029999.

It is an arithmetic number, because the mean of its divisors is an integer number (11029999).

Almost surely, 2^22059997 is an apocalyptic number.

It is an amenable number.

22059997 is a deficient number, since it is larger than the sum of its proper divisors (1).

22059997 is an equidigital number, since it uses as much as digits as its factorization.

22059997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 22059997 is about 4696.8071069611. The cubic root of 22059997 is about 280.4584199771.

The spelling of 22059997 in words is "twenty-two million, fifty-nine thousand, nine hundred ninety-seven".