22984681 has 4 divisors (see below), whose sum is σ = 23016772. Its totient is φ = 22952592.

The previous prime is 22984679. The next prime is 22984691. The reversal of 22984681 is 18648922.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20475625 + 2509056 = 4525^2 + 1584^2 .

It is a cyclic number.

It is not a de Polignac number, because 22984681 - 2¹ = 22984679 is a prime.

It is a super-2 number, since 2×22984681² = 1056591121343522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22984651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14946 + ... + 16411.

It is an arithmetic number, because the mean of its divisors is an integer number (5754193).

Almost surely, 2^22984681 is an apocalyptic number.

It is an amenable number.

22984681 is a deficient number, since it is larger than the sum of its proper divisors (32091).

22984681 is an equidigital number, since it uses as much as digits as its factorization.

22984681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32090.

The product of its digits is 55296, while the sum is 40.

The square root of 22984681 is about 4794.2341411324. The cubic root of 22984681 is about 284.3235459939.

The spelling of 22984681 in words is "twenty-two million, nine hundred eighty-four thousand, six hundred eighty-one".