20823083 has 2 divisors, whose sum is σ = 20823084. Its totient is φ = 20823082.

The previous prime is 20823059. The next prime is 20823109. The reversal of 20823083 is 38032802.

It is an a-pointer prime, because the next prime (20823109) can be obtained adding 20823083 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20823083 - 2¹⁴ = 20806699 is a prime.

It is not a weakly prime, because it can be changed into another prime (20823013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10411541 + 10411542.

It is an arithmetic number, because the mean of its divisors is an integer number (10411542).

Almost surely, 2^20823083 is an apocalyptic number.

20823083 is a deficient number, since it is larger than the sum of its proper divisors (1).

20823083 is an equidigital number, since it uses as much as digits as its factorization.

20823083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 20823083 is about 4563.2316399674. The cubic root of 20823083 is about 275.1154688647.

Adding to 20823083 its reverse (38032802), we get a palindrome (58855885).

The spelling of 20823083 in words is "twenty million, eight hundred twenty-three thousand, eighty-three".