84198529 has 2 divisors, whose sum is σ = 84198530. Its totient is φ = 84198528.

The previous prime is 84198493. The next prime is 84198533. The reversal of 84198529 is 92589148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80138304 + 4060225 = 8952^2 + 2015^2 .

It is a cyclic number.

It is not a de Polignac number, because 84198529 - 2⁹ = 84198017 is a prime.

It is not a weakly prime, because it can be changed into another prime (84198589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42099264 + 42099265.

It is an arithmetic number, because the mean of its divisors is an integer number (42099265).

Almost surely, 2^84198529 is an apocalyptic number.

It is an amenable number.

84198529 is a deficient number, since it is larger than the sum of its proper divisors (1).

84198529 is an equidigital number, since it uses as much as digits as its factorization.

84198529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 46.

The square root of 84198529 is about 9175.9756429494. The cubic root of 84198529 is about 438.2966669569.

The spelling of 84198529 in words is "eighty-four million, one hundred ninety-eight thousand, five hundred twenty-nine".