20323473 has 8 divisors (see below), whose sum is σ = 27351648. Its totient is φ = 13422144.

The previous prime is 20323453. The next prime is 20323487. The reversal of 20323473 is 37432302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20323473 - 2⁵ = 20323441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20323423) 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 7 ways as a sum of consecutive naturals, for example, 31336 + ... + 31977.

It is an arithmetic number, because the mean of its divisors is an integer number (3418956).

Almost surely, 2^20323473 is an apocalyptic number.

It is an amenable number.

20323473 is a deficient number, since it is larger than the sum of its proper divisors (7028175).

20323473 is a wasteful number, since it uses less digits than its factorization.

20323473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63423.

The product of its (nonzero) digits is 3024, while the sum is 24.

The square root of 20323473 is about 4508.1562750198. The cubic root of 20323473 is about 272.8973436299.

Adding to 20323473 its reverse (37432302), we get a palindrome (57755775).

The spelling of 20323473 in words is "twenty million, three hundred twenty-three thousand, four hundred seventy-three".