20327473 has 4 divisors (see below), whose sum is σ = 21397360. Its totient is φ = 19257588.

The previous prime is 20327471. The next prime is 20327477. The reversal of 20327473 is 37472302.

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 20327473 - 2¹ = 20327471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20327471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534915 + ... + 534952.

It is an arithmetic number, because the mean of its divisors is an integer number (5349340).

Almost surely, 2^20327473 is an apocalyptic number.

It is an amenable number.

20327473 is a deficient number, since it is larger than the sum of its proper divisors (1069887).

20327473 is a wasteful number, since it uses less digits than its factorization.

20327473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069886.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 20327473 is about 4508.5998935368. The cubic root of 20327473 is about 272.9152460453.

Adding to 20327473 its reverse (37472302), we get a palindrome (57799775).

The spelling of 20327473 in words is "twenty million, three hundred twenty-seven thousand, four hundred seventy-three".