22999859 has 2 divisors, whose sum is σ = 22999860. Its totient is φ = 22999858.

The previous prime is 22999853. The next prime is 22999877. The reversal of 22999859 is 95899922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22999859 - 2⁴ = 22999843 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22999859.

It is not a weakly prime, because it can be changed into another prime (22999853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11499929 + 11499930.

It is an arithmetic number, because the mean of its divisors is an integer number (11499930).

Almost surely, 2^22999859 is an apocalyptic number.

22999859 is a deficient number, since it is larger than the sum of its proper divisors (1).

22999859 is an equidigital number, since it uses as much as digits as its factorization.

22999859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1049760, while the sum is 53.

The square root of 22999859 is about 4795.8168230240. The cubic root of 22999859 is about 284.3861168459.

The spelling of 22999859 in words is "twenty-two million, nine hundred ninety-nine thousand, eight hundred fifty-nine".