22097858 has 8 divisors (see below), whose sum is σ = 35096652. Its totient is φ = 10398976.

The previous prime is 22097851. The next prime is 22097879. The reversal of 22097858 is 85879022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21780889 + 316969 = 4667^2 + 563^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22097851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324935 + ... + 325002.

Almost surely, 2^22097858 is an apocalyptic number.

22097858 is a deficient number, since it is larger than the sum of its proper divisors (12998794).

22097858 is a wasteful number, since it uses less digits than its factorization.

22097858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649956.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 22097858 is about 4700.8358831170. The cubic root of 22097858 is about 280.6187761081.

The spelling of 22097858 in words is "twenty-two million, ninety-seven thousand, eight hundred fifty-eight".