22073947 has 4 divisors (see below), whose sum is σ = 25227376. Its totient is φ = 18920520.

The previous prime is 22073929. The next prime is 22073977. The reversal of 22073947 is 74937022.

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

It is a cyclic number.

It is not a de Polignac number, because 22073947 - 2⁷ = 22073819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22073977) 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, 1576704 + ... + 1576717.

It is an arithmetic number, because the mean of its divisors is an integer number (6306844).

Almost surely, 2^22073947 is an apocalyptic number.

22073947 is a deficient number, since it is larger than the sum of its proper divisors (3153429).

22073947 is an equidigital number, since it uses as much as digits as its factorization.

22073947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153428.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 22073947 is about 4698.2919236676. The cubic root of 22073947 is about 280.5175250102.

The spelling of 22073947 in words is "twenty-two million, seventy-three thousand, nine hundred forty-seven".