20833069 has 2 divisors, whose sum is σ = 20833070. Its totient is φ = 20833068.

The previous prime is 20833067. The next prime is 20833073. The reversal of 20833069 is 96033802.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20820969 + 12100 = 4563^2 + 110^2 .

It is a cyclic number.

It is not a de Polignac number, because 20833069 - 2¹ = 20833067 is a prime.

It is a super-2 number, since 2×20833069² = 868033527917522, which contains 22 as substring.

Together with 20833067, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20833069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20833067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10416534 + 10416535.

It is an arithmetic number, because the mean of its divisors is an integer number (10416535).

Almost surely, 2^20833069 is an apocalyptic number.

It is an amenable number.

20833069 is a deficient number, since it is larger than the sum of its proper divisors (1).

20833069 is an equidigital number, since it uses as much as digits as its factorization.

20833069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 20833069 is about 4564.3256895187. The cubic root of 20833069 is about 275.1594403237.

The spelling of 20833069 in words is "twenty million, eight hundred thirty-three thousand, sixty-nine".