21347714 has 8 divisors (see below), whose sum is σ = 32173968. Its totient is φ = 10623060.

The previous prime is 21347713. The next prime is 21347723. The reversal of 21347714 is 41774312.

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 (21347713) 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, 24872 + ... + 25715.

It is an arithmetic number, because the mean of its divisors is an integer number (4021746).

Almost surely, 2^21347714 is an apocalyptic number.

21347714 is a deficient number, since it is larger than the sum of its proper divisors (10826254).

21347714 is a wasteful number, since it uses less digits than its factorization.

21347714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50800.

The product of its digits is 4704, while the sum is 29.

The square root of 21347714 is about 4620.3586440881. The cubic root of 21347714 is about 277.4068144761.

The spelling of 21347714 in words is "twenty-one million, three hundred forty-seven thousand, seven hundred fourteen".