21795922 has 8 divisors (see below), whose sum is σ = 33061500. Its totient is φ = 10775424.

The previous prime is 21795919. The next prime is 21795931. The reversal of 21795922 is 22959712.

It can be written as a sum of positive squares in 2 ways, for example, as 17297281 + 4498641 = 4159^2 + 2121^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61047 + ... + 61402.

Almost surely, 2^21795922 is an apocalyptic number.

21795922 is a deficient number, since it is larger than the sum of its proper divisors (11265578).

21795922 is a wasteful number, since it uses less digits than its factorization.

21795922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122540.

The product of its digits is 22680, while the sum is 37.

The square root of 21795922 is about 4668.6102857274. The cubic root of 21795922 is about 279.3348241019.

The spelling of 21795922 in words is "twenty-one million, seven hundred ninety-five thousand, nine hundred twenty-two".