22059397 has 2 divisors, whose sum is σ = 22059398. Its totient is φ = 22059396.

The previous prime is 22059391. The next prime is 22059413. The reversal of 22059397 is 79395022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19131876 + 2927521 = 4374^2 + 1711^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22059397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22059391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11029698 + 11029699.

It is an arithmetic number, because the mean of its divisors is an integer number (11029699).

Almost surely, 2^22059397 is an apocalyptic number.

It is an amenable number.

22059397 is a deficient number, since it is larger than the sum of its proper divisors (1).

22059397 is an equidigital number, since it uses as much as digits as its factorization.

22059397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 22059397 is about 4696.7432333480. The cubic root of 22059397 is about 280.4558772663.

The spelling of 22059397 in words is "twenty-two million, fifty-nine thousand, three hundred ninety-seven".