20085383 has 2 divisors, whose sum is σ = 20085384. Its totient is φ = 20085382.

The previous prime is 20085353. The next prime is 20085397. The reversal of 20085383 is 38358002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20085383 - 2⁶ = 20085319 is a prime.

It is a super-2 number, since 2×20085383² = 806845220513378, which contains 22 as substring.

It is equal to p_1275716 and since 20085383 and 1275716 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20085323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10042691 + 10042692.

It is an arithmetic number, because the mean of its divisors is an integer number (10042692).

Almost surely, 2^20085383 is an apocalyptic number.

20085383 is a deficient number, since it is larger than the sum of its proper divisors (1).

20085383 is an equidigital number, since it uses as much as digits as its factorization.

20085383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 20085383 is about 4481.6718978524. The cubic root of 20085383 is about 271.8274884695.

The spelling of 20085383 in words is "twenty million, eighty-five thousand, three hundred eighty-three".