20883673 has 4 divisors (see below), whose sum is σ = 20950708. Its totient is φ = 20816640.

The previous prime is 20883671. The next prime is 20883697. The reversal of 20883673 is 37638802.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3268864 + 17614809 = 1808^2 + 4197^2 .

It is a cyclic number.

It is not a de Polignac number, because 20883673 - 2¹ = 20883671 is a prime.

It is a super-2 number, since 2×20883673² = 872255595941858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20883671) 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, 33048 + ... + 33673.

It is an arithmetic number, because the mean of its divisors is an integer number (5237677).

Almost surely, 2^20883673 is an apocalyptic number.

It is an amenable number.

20883673 is a deficient number, since it is larger than the sum of its proper divisors (67035).

20883673 is an equidigital number, since it uses as much as digits as its factorization.

20883673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67034.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 20883673 is about 4569.8657529516. The cubic root of 20883673 is about 275.3820496996.

The spelling of 20883673 in words is "twenty million, eight hundred eighty-three thousand, six hundred seventy-three".