83088821 has 2 divisors, whose sum is σ = 83088822. Its totient is φ = 83088820.

The previous prime is 83088793. The next prime is 83088827. The reversal of 83088821 is 12888038.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82992100 + 96721 = 9110^2 + 311^2 .

It is a cyclic number.

It is not a de Polignac number, because 83088821 - 2¹⁸ = 82826677 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83088827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41544410 + 41544411.

It is an arithmetic number, because the mean of its divisors is an integer number (41544411).

Almost surely, 2^83088821 is an apocalyptic number.

It is an amenable number.

83088821 is a deficient number, since it is larger than the sum of its proper divisors (1).

83088821 is an equidigital number, since it uses as much as digits as its factorization.

83088821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24576, while the sum is 38.

The square root of 83088821 is about 9115.3069613700. The cubic root of 83088821 is about 436.3626114651.

The spelling of 83088821 in words is "eighty-three million, eighty-eight thousand, eight hundred twenty-one".