20832073 has 6 divisors (see below), whose sum is σ = 21411726. Its totient is φ = 20267712.

The previous prime is 20832061. The next prime is 20832079. The reversal of 20832073 is 37023802.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 15578809 + 5253264 = 3947^2 + 2292^2 .

It is not a de Polignac number, because 20832073 - 2¹⁷ = 20701001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20832079) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6240 + ... + 8977.

It is an arithmetic number, because the mean of its divisors is an integer number (3568621).

Almost surely, 2^20832073 is an apocalyptic number.

It is an amenable number.

20832073 is a deficient number, since it is larger than the sum of its proper divisors (579653).

20832073 is an equidigital number, since it uses as much as digits as its factorization.

20832073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15291 (or 15254 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20832073 is about 4564.2165811889. The cubic root of 20832073 is about 275.1550552574.

Adding to 20832073 its reverse (37023802), we get a palindrome (57855875).

The spelling of 20832073 in words is "twenty million, eight hundred thirty-two thousand, seventy-three".