20083849 has 2 divisors, whose sum is σ = 20083850. Its totient is φ = 20083848.

The previous prime is 20083837. The next prime is 20083897. The reversal of 20083849 is 94838002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15155449 + 4928400 = 3893^2 + 2220^2 .

It is a cyclic number.

It is not a de Polignac number, because 20083849 - 2⁹ = 20083337 is a prime.

It is not a weakly prime, because it can be changed into another prime (20083549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10041924 + 10041925.

It is an arithmetic number, because the mean of its divisors is an integer number (10041925).

Almost surely, 2^20083849 is an apocalyptic number.

It is an amenable number.

20083849 is a deficient number, since it is larger than the sum of its proper divisors (1).

20083849 is an equidigital number, since it uses as much as digits as its factorization.

20083849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 20083849 is about 4481.5007530960. The cubic root of 20083849 is about 271.8205681138.

The spelling of 20083849 in words is "twenty million, eighty-three thousand, eight hundred forty-nine".