83383785 has 12 divisors (see below), whose sum is σ = 144531972. Its totient is φ = 44471328.

The previous prime is 83383771. The next prime is 83383823. The reversal of 83383785 is 58738338.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19079424 + 64304361 = 4368^2 + 8019^2 .

It is not a de Polignac number, because 83383785 - 2¹¹ = 83381737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1852973 = 83383785 / (8 + 3 + 3 + 8 + 3 + 7 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 83383785.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 926442 + ... + 926531.

It is an arithmetic number, because the mean of its divisors is an integer number (12044331).

Almost surely, 2^83383785 is an apocalyptic number.

It is an amenable number.

83383785 is a deficient number, since it is larger than the sum of its proper divisors (61148187).

83383785 is a wasteful number, since it uses less digits than its factorization.

83383785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852984 (or 1852981 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 83383785 is about 9131.4722252220. The cubic root of 83383785 is about 436.8783617663.

The spelling of 83383785 in words is "eighty-three million, three hundred eighty-three thousand, seven hundred eighty-five".