84324985 has 4 divisors (see below), whose sum is σ = 101189988. Its totient is φ = 67459984.

The previous prime is 84324979. The next prime is 84325013. The reversal of 84324985 is 58942348.

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 54937744 + 29387241 = 7412^2 + 5421^2 .

It is a cyclic number.

It is not a de Polignac number, because 84324985 - 2⁹ = 84324473 is a prime.

It is a super-2 number, since 2×84324985² = 14221406190500450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 8432494 + ... + 8432503.

It is an arithmetic number, because the mean of its divisors is an integer number (25297497).

Almost surely, 2^84324985 is an apocalyptic number.

It is an amenable number.

84324985 is a deficient number, since it is larger than the sum of its proper divisors (16865003).

84324985 is a wasteful number, since it uses less digits than its factorization.

84324985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16865002.

The product of its digits is 276480, while the sum is 43.

The square root of 84324985 is about 9182.8636601008. The cubic root of 84324985 is about 438.5159800485.

The spelling of 84324985 in words is "eighty-four million, three hundred twenty-four thousand, nine hundred eighty-five".