20833693 has 2 divisors, whose sum is σ = 20833694. Its totient is φ = 20833692.

The previous prime is 20833691. The next prime is 20833723. The reversal of 20833693 is 39633802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10478169 + 10355524 = 3237^2 + 3218^2 .

It is a cyclic number.

It is not a de Polignac number, because 20833693 - 2¹ = 20833691 is a prime.

Together with 20833691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20833691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10416846 + 10416847.

It is an arithmetic number, because the mean of its divisors is an integer number (10416847).

Almost surely, 2^20833693 is an apocalyptic number.

It is an amenable number.

20833693 is a deficient number, since it is larger than the sum of its proper divisors (1).

20833693 is an equidigital number, since it uses as much as digits as its factorization.

20833693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 20833693 is about 4564.3940452156. The cubic root of 20833693 is about 275.1621875230.

It can be divided in two parts, 2083 and 3693, that added together give a square (5776 = 76²).

The spelling of 20833693 in words is "twenty million, eight hundred thirty-three thousand, six hundred ninety-three".