21704314 has 8 divisors (see below), whose sum is σ = 32581440. Its totient is φ = 10843836.

The previous prime is 21704303. The next prime is 21704317. The reversal of 21704314 is 41340712.

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

It is not an unprimeable number, because it can be changed into a prime (21704317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114 + ... + 6589.

It is an arithmetic number, because the mean of its divisors is an integer number (4072680).

Almost surely, 2^21704314 is an apocalyptic number.

21704314 is a deficient number, since it is larger than the sum of its proper divisors (10877126).

21704314 is a wasteful number, since it uses less digits than its factorization.

21704314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8324.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 21704314 is about 4658.7888984156. The cubic root of 21704314 is about 278.9429275654.

The spelling of 21704314 in words is "twenty-one million, seven hundred four thousand, three hundred fourteen".