22487447 has 8 divisors (see below), whose sum is σ = 23870016. Its totient is φ = 21111552.

The previous prime is 22487417. The next prime is 22487459. The reversal of 22487447 is 74478422.

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

It is not a de Polignac number, because 22487447 - 2¹⁰ = 22486423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22487447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22487417) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 6443 + ... + 9299.

It is an arithmetic number, because the mean of its divisors is an integer number (2983752).

Almost surely, 2^22487447 is an apocalyptic number.

22487447 is a deficient number, since it is larger than the sum of its proper divisors (1382569).

22487447 is a wasteful number, since it uses less digits than its factorization.

22487447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337.

The product of its digits is 100352, while the sum is 38.

The square root of 22487447 is about 4742.0931032615. The cubic root of 22487447 is about 282.2582974519.

The spelling of 22487447 in words is "twenty-two million, four hundred eighty-seven thousand, four hundred forty-seven".