84484861 has 4 divisors (see below), whose sum is σ = 84610332. Its totient is φ = 84359392.

The previous prime is 84484837. The next prime is 84484867. The reversal of 84484861 is 16848448.

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 61387225 + 23097636 = 7835^2 + 4806^2 .

It is a cyclic number.

It is not a de Polignac number, because 84484861 - 2¹³ = 84476669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84484867) 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 in 3 ways as a sum of consecutive naturals, for example, 61720 + ... + 63073.

It is an arithmetic number, because the mean of its divisors is an integer number (21152583).

Almost surely, 2^84484861 is an apocalyptic number.

It is an amenable number.

84484861 is a deficient number, since it is larger than the sum of its proper divisors (125471).

84484861 is a wasteful number, since it uses less digits than its factorization.

84484861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125470.

The product of its digits is 196608, while the sum is 43.

The square root of 84484861 is about 9191.5646654963. The cubic root of 84484861 is about 438.7929399564.

The spelling of 84484861 in words is "eighty-four million, four hundred eighty-four thousand, eight hundred sixty-one".