20714511 has 8 divisors (see below), whose sum is σ = 27969280. Its totient is φ = 13634712.

The previous prime is 20714509. The next prime is 20714521. The reversal of 20714511 is 11541702.

It is a happy number.

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

It is not a de Polignac number, because 20714511 - 2¹ = 20714509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20714521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43465 + ... + 43938.

It is an arithmetic number, because the mean of its divisors is an integer number (3496160).

Almost surely, 2^20714511 is an apocalyptic number.

20714511 is a deficient number, since it is larger than the sum of its proper divisors (7254769).

20714511 is an equidigital number, since it uses as much as digits as its factorization.

20714511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87485.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 20714511 is about 4551.3196987248. The cubic root of 20714511 is about 274.6364827707.

The spelling of 20714511 in words is "twenty million, seven hundred fourteen thousand, five hundred eleven".