20927473 has 8 divisors (see below), whose sum is σ = 24742080. Its totient is φ = 17319120.

The previous prime is 20927471. The next prime is 20927479. The reversal of 20927473 is 37472902.

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

It is not a de Polignac number, because 20927473 - 2¹ = 20927471 is a prime.

It is a super-3 number, since 3×20927473³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20927471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51343 + ... + 51748.

It is an arithmetic number, because the mean of its divisors is an integer number (3092760).

Almost surely, 2^20927473 is an apocalyptic number.

It is an amenable number.

20927473 is a deficient number, since it is larger than the sum of its proper divisors (3814607).

20927473 is a wasteful number, since it uses less digits than its factorization.

20927473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103127.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 20927473 is about 4574.6555061556. The cubic root of 20927473 is about 275.5744378091.

The spelling of 20927473 in words is "twenty million, nine hundred twenty-seven thousand, four hundred seventy-three".