20473271 has 16 divisors (see below), whose sum is σ = 25376064. Its totient is φ = 16084224.

The previous prime is 20473261. The next prime is 20473291. The reversal of 20473271 is 17237402.

It is not a de Polignac number, because 20473271 - 2¹⁰ = 20472247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20473271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20473231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13571 + ... + 15003.

It is an arithmetic number, because the mean of its divisors is an integer number (1586004).

Almost surely, 2^20473271 is an apocalyptic number.

20473271 is a deficient number, since it is larger than the sum of its proper divisors (4902793).

20473271 is a wasteful number, since it uses less digits than its factorization.

20473271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 20473271 is about 4524.7398820264. The cubic root of 20473271 is about 273.5661835293.

The spelling of 20473271 in words is "twenty million, four hundred seventy-three thousand, two hundred seventy-one".