20173316 has 12 divisors (see below), whose sum is σ = 35729232. Its totient is φ = 9964968.

The previous prime is 20173313. The next prime is 20173327. The reversal of 20173316 is 61337102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20173291 and 20173300.

It is not an unprimeable number, because it can be changed into a prime (20173313) 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, 30050 + ... + 30713.

It is an arithmetic number, because the mean of its divisors is an integer number (2977436).

Almost surely, 2^20173316 is an apocalyptic number.

It is an amenable number.

20173316 is a deficient number, since it is larger than the sum of its proper divisors (15555916).

20173316 is a wasteful number, since it uses less digits than its factorization.

20173316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60850 (or 60848 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 20173316 is about 4491.4714738045. The cubic root of 20173316 is about 272.2235942609.

The spelling of 20173316 in words is "twenty million, one hundred seventy-three thousand, three hundred sixteen".