84198249 has 12 divisors (see below), whose sum is σ = 122736900. Its totient is φ = 55616544.

The previous prime is 84198217. The next prime is 84198259. The reversal of 84198249 is 94289148.

It can be written as a sum of positive squares in 2 ways, for example, as 24800400 + 59397849 = 4980^2 + 7707^2 .

It is not a de Polignac number, because 84198249 - 2⁵ = 84198217 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (84198209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41934 + ... + 43895.

It is an arithmetic number, because the mean of its divisors is an integer number (10228075).

Almost surely, 2^84198249 is an apocalyptic number.

It is an amenable number.

84198249 is a deficient number, since it is larger than the sum of its proper divisors (38538651).

84198249 is a wasteful number, since it uses less digits than its factorization.

84198249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85944 (or 85941 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 84198249 is about 9175.9603857035. The cubic root of 84198249 is about 438.2961811084.

The spelling of 84198249 in words is "eighty-four million, one hundred ninety-eight thousand, two hundred forty-nine".