20934273 has 4 divisors (see below), whose sum is σ = 27912368. Its totient is φ = 13956180.

The previous prime is 20934271. The next prime is 20934281. The reversal of 20934273 is 37243902.

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 not a de Polignac number, because 20934273 - 2¹ = 20934271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20934273.

It is not an unprimeable number, because it can be changed into a prime (20934271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3489043 + ... + 3489048.

It is an arithmetic number, because the mean of its divisors is an integer number (6978092).

Almost surely, 2^20934273 is an apocalyptic number.

It is an amenable number.

20934273 is a deficient number, since it is larger than the sum of its proper divisors (6978095).

20934273 is an equidigital number, since it uses as much as digits as its factorization.

20934273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6978094.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 20934273 is about 4575.3986711542. The cubic root of 20934273 is about 275.6042822031.

The spelling of 20934273 in words is "twenty million, nine hundred thirty-four thousand, two hundred seventy-three".