20085794 has 4 divisors (see below), whose sum is σ = 30128694. Its totient is φ = 10042896.

The previous prime is 20085763. The next prime is 20085797. The reversal of 20085794 is 49758002.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 15311569 + 4774225 = 3913^2 + 2185^2 .

It is a super-2 number, since 2×20085794² = 806878241220872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20085797) 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 as a sum of consecutive naturals, namely, 5021447 + ... + 5021450.

Almost surely, 2^20085794 is an apocalyptic number.

20085794 is a deficient number, since it is larger than the sum of its proper divisors (10042900).

20085794 is a wasteful number, since it uses less digits than its factorization.

20085794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10042899.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 20085794 is about 4481.7177510414. The cubic root of 20085794 is about 271.8293425597.

The spelling of 20085794 in words is "twenty million, eighty-five thousand, seven hundred ninety-four".