83566933 has 2 divisors, whose sum is σ = 83566934. Its totient is φ = 83566932.

The previous prime is 83566919. The next prime is 83566961. The reversal of 83566933 is 33966538.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78978769 + 4588164 = 8887^2 + 2142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83566933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83566933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83566913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41783466 + 41783467.

It is an arithmetic number, because the mean of its divisors is an integer number (41783467).

Almost surely, 2^83566933 is an apocalyptic number.

It is an amenable number.

83566933 is a deficient number, since it is larger than the sum of its proper divisors (1).

83566933 is an equidigital number, since it uses as much as digits as its factorization.

83566933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 43.

The square root of 83566933 is about 9141.4951184147. The cubic root of 83566933 is about 437.1979878098.

The spelling of 83566933 in words is "eighty-three million, five hundred sixty-six thousand, nine hundred thirty-three".