83383505 has 4 divisors (see below), whose sum is σ = 100060212. Its totient is φ = 66706800.

The previous prime is 83383483. The next prime is 83383507. The reversal of 83383505 is 50538338.

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 17172736 + 66210769 = 4144^2 + 8137^2 .

It is not a de Polignac number, because 83383505 - 2¹² = 83379409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83383507) 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, 8338346 + ... + 8338355.

It is an arithmetic number, because the mean of its divisors is an integer number (25015053).

Almost surely, 2^83383505 is an apocalyptic number.

It is an amenable number.

83383505 is a deficient number, since it is larger than the sum of its proper divisors (16676707).

83383505 is a wasteful number, since it uses less digits than its factorization.

83383505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16676706.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 83383505 is about 9131.4568936178. The cubic root of 83383505 is about 436.8778727580.

The spelling of 83383505 in words is "eighty-three million, three hundred eighty-three thousand, five hundred five".