20682773 has 24 divisors (see below), whose sum is σ = 23701248. Its totient is φ = 17997408.

The previous prime is 20682769. The next prime is 20682793. The reversal of 20682773 is 37728602.

It is not a de Polignac number, because 20682773 - 2² = 20682769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20682743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 390215 + ... + 390267.

It is an arithmetic number, because the mean of its divisors is an integer number (987552).

Almost surely, 2^20682773 is an apocalyptic number.

20682773 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20682773 is a deficient number, since it is larger than the sum of its proper divisors (3018475).

20682773 is a wasteful number, since it uses less digits than its factorization.

20682773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 20682773 is about 4547.8316811421. The cubic root of 20682773 is about 274.4961484878.

The spelling of 20682773 in words is "twenty million, six hundred eighty-two thousand, seven hundred seventy-three".