84104249 has 4 divisors (see below), whose sum is σ = 85256436. Its totient is φ = 82952064.

The previous prime is 84104239. The next prime is 84104297. The reversal of 84104249 is 94240148.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72250000 + 11854249 = 8500^2 + 3443^2 .

It is a cyclic number.

It is not a de Polignac number, because 84104249 - 2⁴ = 84104233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84104239) 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 3 ways as a sum of consecutive naturals, for example, 575984 + ... + 576129.

It is an arithmetic number, because the mean of its divisors is an integer number (21314109).

Almost surely, 2^84104249 is an apocalyptic number.

It is an amenable number.

84104249 is a deficient number, since it is larger than the sum of its proper divisors (1152187).

84104249 is a wasteful number, since it uses less digits than its factorization.

84104249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152186.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 84104249 is about 9170.8368756619. The cubic root of 84104249 is about 438.1330138888.

The spelling of 84104249 in words is "eighty-four million, one hundred four thousand, two hundred forty-nine".