20793085 has 4 divisors (see below), whose sum is σ = 24951708. Its totient is φ = 16634464.

The previous prime is 20793083. The next prime is 20793103. The reversal of 20793085 is 58039702.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12096484 + 8696601 = 3478^2 + 2949^2 .

It is a cyclic number.

It is not a de Polignac number, because 20793085 - 2¹ = 20793083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20793085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20793083) 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, 2079304 + ... + 2079313.

It is an arithmetic number, because the mean of its divisors is an integer number (6237927).

Almost surely, 2^20793085 is an apocalyptic number.

It is an amenable number.

20793085 is a deficient number, since it is larger than the sum of its proper divisors (4158623).

20793085 is an equidigital number, since it uses as much as digits as its factorization.

20793085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158622.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 20793085 is about 4559.9435303521. The cubic root of 20793085 is about 274.9832937510.

The spelling of 20793085 in words is "twenty million, seven hundred ninety-three thousand, eighty-five".