20085694 has 4 divisors (see below), whose sum is σ = 30128544. Its totient is φ = 10042846.

The previous prime is 20085643. The next prime is 20085697. The reversal of 20085694 is 49658002.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20085697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5021422 + ... + 5021425.

It is an arithmetic number, because the mean of its divisors is an integer number (7532136).

Almost surely, 2^20085694 is an apocalyptic number.

20085694 is a deficient number, since it is larger than the sum of its proper divisors (10042850).

20085694 is a wasteful number, since it uses less digits than its factorization.

20085694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10042849.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 20085694 is about 4481.7065945909. The cubic root of 20085694 is about 271.8288914452.

The spelling of 20085694 in words is "twenty million, eighty-five thousand, six hundred ninety-four".