20800683 has 6 divisors (see below), whose sum is σ = 30045444. Its totient is φ = 13867116.

The previous prime is 20800679. The next prime is 20800699. The reversal of 20800683 is 38600802.

It is not a de Polignac number, because 20800683 - 2² = 20800679 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20800603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1155585 + ... + 1155602.

It is an arithmetic number, because the mean of its divisors is an integer number (5007574).

Almost surely, 2^20800683 is an apocalyptic number.

20800683 is a deficient number, since it is larger than the sum of its proper divisors (9244761).

20800683 is a wasteful number, since it uses less digits than its factorization.

20800683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311193 (or 2311190 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 20800683 is about 4560.7765786103. The cubic root of 20800683 is about 275.0167835487.

The spelling of 20800683 in words is "twenty million, eight hundred thousand, six hundred eighty-three".