83966837 has 2 divisors, whose sum is σ = 83966838. Its totient is φ = 83966836.

The previous prime is 83966821. The next prime is 83966881. The reversal of 83966837 is 73866938.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71250481 + 12716356 = 8441^2 + 3566^2 .

It is a cyclic number.

It is not a de Polignac number, because 83966837 - 2⁴ = 83966821 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83966807) 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, 41983418 + 41983419.

It is an arithmetic number, because the mean of its divisors is an integer number (41983419).

Almost surely, 2^83966837 is an apocalyptic number.

It is an amenable number.

83966837 is a deficient number, since it is larger than the sum of its proper divisors (1).

83966837 is an equidigital number, since it uses as much as digits as its factorization.

83966837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 50.

The square root of 83966837 is about 9163.3420213370. The cubic root of 83966837 is about 437.8942722782.

It can be divided in two parts, 839 and 66837, that added together give a palindrome (67676).

The spelling of 83966837 in words is "eighty-three million, nine hundred sixty-six thousand, eight hundred thirty-seven".