21814703 has 2 divisors, whose sum is σ = 21814704. Its totient is φ = 21814702.

The previous prime is 21814633. The next prime is 21814711. The reversal of 21814703 is 30741812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21814703 - 2⁸ = 21814447 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21814733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10907351 + 10907352.

It is an arithmetic number, because the mean of its divisors is an integer number (10907352).

Almost surely, 2^21814703 is an apocalyptic number.

21814703 is a deficient number, since it is larger than the sum of its proper divisors (1).

21814703 is an equidigital number, since it uses as much as digits as its factorization.

21814703 is an evil number, because the sum of its binary digits is even.

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

The square root of 21814703 is about 4670.6212648854. The cubic root of 21814703 is about 279.4150330085.

The spelling of 21814703 in words is "twenty-one million, eight hundred fourteen thousand, seven hundred three".