84183997 has 2 divisors, whose sum is σ = 84183998. Its totient is φ = 84183996.

The previous prime is 84183977. The next prime is 84184007. The reversal of 84183997 is 79938148.

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., 77686596 + 6497401 = 8814^2 + 2549^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84183997 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84183997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84183907) 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, 42091998 + 42091999.

It is an arithmetic number, because the mean of its divisors is an integer number (42091999).

Almost surely, 2^84183997 is an apocalyptic number.

It is an amenable number.

84183997 is a deficient number, since it is larger than the sum of its proper divisors (1).

84183997 is an equidigital number, since it uses as much as digits as its factorization.

84183997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 49.

The square root of 84183997 is about 9175.1837583778. The cubic root of 84183997 is about 438.2714499937.

The spelling of 84183997 in words is "eighty-four million, one hundred eighty-three thousand, nine hundred ninety-seven".