20792717 has 8 divisors (see below), whose sum is σ = 24017472. Its totient is φ = 17790400.

The previous prime is 20792711. The next prime is 20792719. The reversal of 20792717 is 71729702.

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 20792717 - 2²⁰ = 19744141 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 (20792711) 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, 55409 + ... + 55782.

It is an arithmetic number, because the mean of its divisors is an integer number (3002184).

Almost surely, 2^20792717 is an apocalyptic number.

It is an amenable number.

20792717 is a deficient number, since it is larger than the sum of its proper divisors (3224755).

20792717 is a wasteful number, since it uses less digits than its factorization.

20792717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111219.

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 20792717 is about 4559.9031787967. The cubic root of 20792717 is about 274.9816715057.

The spelling of 20792717 in words is "twenty million, seven hundred ninety-two thousand, seven hundred seventeen".