20705914 has 8 divisors (see below), whose sum is σ = 31111380. Its totient is φ = 10335456.

The previous prime is 20705899. The next prime is 20705917. The reversal of 20705914 is 41950702.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12837889 + 7868025 = 3583^2 + 2805^2 .

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 (20705917) 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, 7219 + ... + 9670.

Almost surely, 2^20705914 is an apocalyptic number.

20705914 is a deficient number, since it is larger than the sum of its proper divisors (10405466).

20705914 is a wasteful number, since it uses less digits than its factorization.

20705914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17504.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 20705914 is about 4550.3751493696. The cubic root of 20705914 is about 274.5984840211.

The spelling of 20705914 in words is "twenty million, seven hundred five thousand, nine hundred fourteen".