83969533 has 2 divisors, whose sum is σ = 83969534. Its totient is φ = 83969532.

The previous prime is 83969519. The next prime is 83969549. The reversal of 83969533 is 33596938.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83503044 + 466489 = 9138^2 + 683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83969533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83969513) 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, 41984766 + 41984767.

It is an arithmetic number, because the mean of its divisors is an integer number (41984767).

Almost surely, 2^83969533 is an apocalyptic number.

It is an amenable number.

83969533 is a deficient number, since it is larger than the sum of its proper divisors (1).

83969533 is an equidigital number, since it uses as much as digits as its factorization.

83969533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 46.

The square root of 83969533 is about 9163.4891280560. The cubic root of 83969533 is about 437.8989588520.

The spelling of 83969533 in words is "eighty-three million, nine hundred sixty-nine thousand, five hundred thirty-three".