21910714 has 8 divisors (see below), whose sum is σ = 37561248. Its totient is φ = 9390300.

The previous prime is 21910703. The next prime is 21910717. The reversal of 21910714 is 41701912.

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 (21910717) 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, 782512 + ... + 782539.

It is an arithmetic number, because the mean of its divisors is an integer number (4695156).

Almost surely, 2^21910714 is an apocalyptic number.

21910714 is a deficient number, since it is larger than the sum of its proper divisors (15650534).

21910714 is a wasteful number, since it uses less digits than its factorization.

21910714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565060.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 21910714 is about 4680.8881635861. Note that the first 3 decimals coincide. The cubic root of 21910714 is about 279.8243541249.

The spelling of 21910714 in words is "twenty-one million, nine hundred ten thousand, seven hundred fourteen".