20836713 has 8 divisors (see below), whose sum is σ = 29416608. Its totient is φ = 13073984.

The previous prime is 20836709. The next prime is 20836721. The reversal of 20836713 is 31763802.

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 20836713 - 2² = 20836709 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20836793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204231 + ... + 204332.

It is an arithmetic number, because the mean of its divisors is an integer number (3677076).

Almost surely, 2^20836713 is an apocalyptic number.

It is an amenable number.

20836713 is a deficient number, since it is larger than the sum of its proper divisors (8579895).

20836713 is a wasteful number, since it uses less digits than its factorization.

20836713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408583.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 20836713 is about 4564.7248547968. The cubic root of 20836713 is about 275.1754824880.

The spelling of 20836713 in words is "twenty million, eight hundred thirty-six thousand, seven hundred thirteen".