22487005 has 8 divisors (see below), whose sum is σ = 28571832. Its totient is φ = 16931328.

The previous prime is 22486973. The next prime is 22487041. The reversal of 22487005 is 50078422.

It can be written as a sum of positive squares in 4 ways, for example, as 556516 + 21930489 = 746^2 + 4683^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22487005 - 2⁵ = 22486973 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 132192 + ... + 132361.

It is an arithmetic number, because the mean of its divisors is an integer number (3571479).

Almost surely, 2^22487005 is an apocalyptic number.

It is an amenable number.

22487005 is a deficient number, since it is larger than the sum of its proper divisors (6084827).

22487005 is a wasteful number, since it uses less digits than its factorization.

22487005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264575.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 22487005 is about 4742.0464991394. The cubic root of 22487005 is about 282.2564481389.

The spelling of 22487005 in words is "twenty-two million, four hundred eighty-seven thousand, five".