21589114 has 4 divisors (see below), whose sum is σ = 32383674. Its totient is φ = 10794556.

The previous prime is 21589097. The next prime is 21589123. The reversal of 21589114 is 41198512.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 21003889 + 585225 = 4583^2 + 765^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5397277 + ... + 5397280.

Almost surely, 2^21589114 is an apocalyptic number.

21589114 is a deficient number, since it is larger than the sum of its proper divisors (10794560).

21589114 is a wasteful number, since it uses less digits than its factorization.

21589114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10794559.

The product of its digits is 2880, while the sum is 31.

The square root of 21589114 is about 4646.4087207218. The cubic root of 21589114 is about 278.4485366586.

The spelling of 21589114 in words is "twenty-one million, five hundred eighty-nine thousand, one hundred fourteen".