20350173 has 8 divisors (see below), whose sum is σ = 28729728. Its totient is φ = 12768704.

The previous prime is 20350171. The next prime is 20350181. The reversal of 20350173 is 37105302.

It is a happy number.

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 20350173 - 2¹ = 20350171 is a prime.

It is a super-2 number, since 2×20350173² = 828259082259858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20350171) 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, 199461 + ... + 199562.

It is an arithmetic number, because the mean of its divisors is an integer number (3591216).

Almost surely, 2^20350173 is an apocalyptic number.

It is an amenable number.

20350173 is a deficient number, since it is larger than the sum of its proper divisors (8379555).

20350173 is a wasteful number, since it uses less digits than its factorization.

20350173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399043.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 20350173 is about 4511.1166023502. The cubic root of 20350173 is about 273.0167977964.

Adding to 20350173 its reverse (37105302), we get a palindrome (57455475).

The spelling of 20350173 in words is "twenty million, three hundred fifty thousand, one hundred seventy-three".