21701714 has 8 divisors (see below), whose sum is σ = 32574960. Its totient is φ = 10843396.

The previous prime is 21701689. The next prime is 21701723. The reversal of 21701714 is 41710712.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21701714.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1217 + ... + 6699.

It is an arithmetic number, because the mean of its divisors is an integer number (4071870).

Almost surely, 2^21701714 is an apocalyptic number.

21701714 is a deficient number, since it is larger than the sum of its proper divisors (10873246).

21701714 is a wasteful number, since it uses less digits than its factorization.

21701714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7464.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 21701714 is about 4658.5098475800. The cubic root of 21701714 is about 278.9317887572.

The spelling of 21701714 in words is "twenty-one million, seven hundred one thousand, seven hundred fourteen".