22450847 has 4 divisors (see below), whose sum is σ = 22660776. Its totient is φ = 22240920.

The previous prime is 22450817. The next prime is 22450849. The reversal of 22450847 is 74805422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74805422 = 2 ⋅37402711.

It is a cyclic number.

It is not a de Polignac number, because 22450847 - 2¹² = 22446751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22450849) 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, 104804 + ... + 105017.

It is an arithmetic number, because the mean of its divisors is an integer number (5665194).

Almost surely, 2^22450847 is an apocalyptic number.

22450847 is a deficient number, since it is larger than the sum of its proper divisors (209929).

22450847 is a wasteful number, since it uses less digits than its factorization.

22450847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209928.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 22450847 is about 4738.2324763566. The cubic root of 22450847 is about 282.1050821433.

The spelling of 22450847 in words is "twenty-two million, four hundred fifty thousand, eight hundred forty-seven".