20073317 has 4 divisors (see below), whose sum is σ = 21898176. Its totient is φ = 18248460.

The previous prime is 20073299. The next prime is 20073343. The reversal of 20073317 is 71337002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20073317 - 2¹⁶ = 20007781 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20073292 and 20073301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20073397) 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, 912413 + ... + 912434.

It is an arithmetic number, because the mean of its divisors is an integer number (5474544).

Almost surely, 2^20073317 is an apocalyptic number.

It is an amenable number.

20073317 is a deficient number, since it is larger than the sum of its proper divisors (1824859).

20073317 is a wasteful number, since it uses less digits than its factorization.

20073317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824858.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 20073317 is about 4480.3255462076. The cubic root of 20073317 is about 271.7730454371.

The spelling of 20073317 in words is "twenty million, seventy-three thousand, three hundred seventeen".