83356885 has 4 divisors (see below), whose sum is σ = 100028268. Its totient is φ = 66685504.

The previous prime is 83356883. The next prime is 83356907. The reversal of 83356885 is 58865338.

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 27973521 + 55383364 = 5289^2 + 7442^2 .

It is a cyclic number.

It is not a de Polignac number, because 83356885 - 2¹ = 83356883 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 (83356883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8335684 + ... + 8335693.

It is an arithmetic number, because the mean of its divisors is an integer number (25007067).

Almost surely, 2^83356885 is an apocalyptic number.

It is an amenable number.

83356885 is a deficient number, since it is larger than the sum of its proper divisors (16671383).

83356885 is a wasteful number, since it uses less digits than its factorization.

83356885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16671382.

The product of its digits is 691200, while the sum is 46.

The square root of 83356885 is about 9129.9991785323. Note that the first 3 decimals coincide. The cubic root of 83356885 is about 436.8313770441.

The spelling of 83356885 in words is "eighty-three million, three hundred fifty-six thousand, eight hundred eighty-five".