20680773 has 8 divisors (see below), whose sum is σ = 27644736. Its totient is φ = 13752000.

The previous prime is 20680747. The next prime is 20680787. The reversal of 20680773 is 37708602.

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

It is not a de Polignac number, because 20680773 - 2¹⁷ = 20549701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20680733) 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, 7393 + ... + 9798.

It is an arithmetic number, because the mean of its divisors is an integer number (3455592).

Almost surely, 2^20680773 is an apocalyptic number.

It is an amenable number.

20680773 is a deficient number, since it is larger than the sum of its proper divisors (6963963).

20680773 is a wasteful number, since it uses less digits than its factorization.

20680773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17595.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 20680773 is about 4547.6117908194. The cubic root of 20680773 is about 274.4873003836.

The spelling of 20680773 in words is "twenty million, six hundred eighty thousand, seven hundred seventy-three".