20850073 has 8 divisors (see below), whose sum is σ = 21828096. Its totient is φ = 19891200.

The previous prime is 20850059. The next prime is 20850077. The reversal of 20850073 is 37005802.

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 20850073 - 2⁹ = 20849561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20850077) 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, 2536 + ... + 6937.

It is an arithmetic number, because the mean of its divisors is an integer number (2728512).

Almost surely, 2^20850073 is an apocalyptic number.

It is an amenable number.

20850073 is a deficient number, since it is larger than the sum of its proper divisors (978023).

20850073 is an equidigital number, since it uses as much as digits as its factorization.

20850073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9575.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 20850073 is about 4566.1880162779. The cubic root of 20850073 is about 275.2342818933.

Adding to 20850073 its reverse (37005802), we get a palindrome (57855875).

The spelling of 20850073 in words is "twenty million, eight hundred fifty thousand, seventy-three".