83840017 has 2 divisors, whose sum is σ = 83840018. Its totient is φ = 83840016.

The previous prime is 83839997. The next prime is 83840033. The reversal of 83840017 is 71004838.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43441281 + 40398736 = 6591^2 + 6356^2 .

It is a cyclic number.

It is not a de Polignac number, because 83840017 - 2¹⁵ = 83807249 is a prime.

It is not a weakly prime, because it can be changed into another prime (83840717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41920008 + 41920009.

It is an arithmetic number, because the mean of its divisors is an integer number (41920009).

Almost surely, 2^83840017 is an apocalyptic number.

It is an amenable number.

83840017 is a deficient number, since it is larger than the sum of its proper divisors (1).

83840017 is an equidigital number, since it uses as much as digits as its factorization.

83840017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 83840017 is about 9156.4194421182. The cubic root of 83840017 is about 437.6737021274.

The spelling of 83840017 in words is "eighty-three million, eight hundred forty thousand, seventeen".