22791722 has 4 divisors (see below), whose sum is σ = 34187586. Its totient is φ = 11395860.

The previous prime is 22791707. The next prime is 22791733. The reversal of 22791722 is 22719722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22648081 + 143641 = 4759^2 + 379^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5697929 + ... + 5697932.

Almost surely, 2^22791722 is an apocalyptic number.

22791722 is a deficient number, since it is larger than the sum of its proper divisors (11395864).

22791722 is a wasteful number, since it uses less digits than its factorization.

22791722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11395863.

The product of its digits is 7056, while the sum is 32.

The square root of 22791722 is about 4774.0676576689. The cubic root of 22791722 is about 283.5256662580.

The spelling of 22791722 in words is "twenty-two million, seven hundred ninety-one thousand, seven hundred twenty-two".