20216713 has 8 divisors (see below), whose sum is σ = 22087296. Its totient is φ = 18351600.

The previous prime is 20216699. The next prime is 20216759. The reversal of 20216713 is 31761202.

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

It is a cyclic number.

It is not a de Polignac number, because 20216713 - 2⁹ = 20216201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20214713) 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 7 ways as a sum of consecutive naturals, for example, 12795 + ... + 14287.

It is an arithmetic number, because the mean of its divisors is an integer number (2760912).

Almost surely, 2^20216713 is an apocalyptic number.

It is an amenable number.

20216713 is a deficient number, since it is larger than the sum of its proper divisors (1870583).

20216713 is a wasteful number, since it uses less digits than its factorization.

20216713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 20216713 is about 4496.2999232702. The cubic root of 20216713 is about 272.4186576505.

Adding to 20216713 its reverse (31761202), we get a palindrome (51977915).

The spelling of 20216713 in words is "twenty million, two hundred sixteen thousand, seven hundred thirteen".