21417614 has 8 divisors (see below), whose sum is σ = 32438640. Its totient is φ = 10604736.

The previous prime is 21417587. The next prime is 21417619. The reversal of 21417614 is 41671412.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21417619) 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 3 ways as a sum of consecutive naturals, for example, 51779 + ... + 52190.

It is an arithmetic number, because the mean of its divisors is an integer number (4054830).

Almost surely, 2^21417614 is an apocalyptic number.

21417614 is a deficient number, since it is larger than the sum of its proper divisors (11021026).

21417614 is a wasteful number, since it uses less digits than its factorization.

21417614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104074.

The product of its digits is 1344, while the sum is 26.

The square root of 21417614 is about 4627.9168099697. The cubic root of 21417614 is about 277.7092607661.

The spelling of 21417614 in words is "twenty-one million, four hundred seventeen thousand, six hundred fourteen".