83285885 has 4 divisors (see below), whose sum is σ = 99943068. Its totient is φ = 66628704.

The previous prime is 83285827. The next prime is 83285893. The reversal of 83285885 is 58858238.

It is a happy number.

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 22477081 + 60808804 = 4741^2 + 7798^2 .

It is a cyclic number.

It is not a de Polignac number, because 83285885 - 2¹⁸ = 83023741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8328584 + ... + 8328593.

It is an arithmetic number, because the mean of its divisors is an integer number (24985767).

Almost surely, 2^83285885 is an apocalyptic number.

It is an amenable number.

83285885 is a deficient number, since it is larger than the sum of its proper divisors (16657183).

83285885 is a wasteful number, since it uses less digits than its factorization.

83285885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16657182.

The product of its digits is 614400, while the sum is 47.

The square root of 83285885 is about 9126.1100694655. The cubic root of 83285885 is about 436.7073167552.

The spelling of 83285885 in words is "eighty-three million, two hundred eighty-five thousand, eight hundred eighty-five".