84312533 has 8 divisors (see below), whose sum is σ = 84961080. Its totient is φ = 83666880.

The previous prime is 84312521. The next prime is 84312539. The reversal of 84312533 is 33521348.

It can be written as a sum of positive squares in 4 ways, for example, as 24373969 + 59938564 = 4937^2 + 7742^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84312533 - 2¹⁶ = 84246997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84312496 and 84312505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84312539) 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 7 ways as a sum of consecutive naturals, for example, 127223 + ... + 127883.

It is an arithmetic number, because the mean of its divisors is an integer number (10620135).

Almost surely, 2^84312533 is an apocalyptic number.

It is an amenable number.

84312533 is a deficient number, since it is larger than the sum of its proper divisors (648547).

84312533 is a wasteful number, since it uses less digits than its factorization.

84312533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447.

The product of its digits is 8640, while the sum is 29.

The square root of 84312533 is about 9182.1856330614. The cubic root of 84312533 is about 438.4943942367.

The spelling of 84312533 in words is "eighty-four million, three hundred twelve thousand, five hundred thirty-three".