20473763 has 8 divisors (see below), whose sum is σ = 21723408. Its totient is φ = 19229184.

The previous prime is 20473759. The next prime is 20473769. The reversal of 20473763 is 36737402.

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

It is a cyclic number.

It is not a de Polignac number, because 20473763 - 2² = 20473759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20473769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9995 + ... + 11867.

It is an arithmetic number, because the mean of its divisors is an integer number (2715426).

Almost surely, 2^20473763 is an apocalyptic number.

20473763 is a deficient number, since it is larger than the sum of its proper divisors (1249645).

20473763 is a wasteful number, since it uses less digits than its factorization.

20473763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2533.

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 20473763 is about 4524.7942494659. The cubic root of 20473763 is about 273.5683748984.

The spelling of 20473763 in words is "twenty million, four hundred seventy-three thousand, seven hundred sixty-three".