83518385 has 4 divisors (see below), whose sum is σ = 100222068. Its totient is φ = 66814704.

The previous prime is 83518349. The next prime is 83518397. The reversal of 83518385 is 58381538.

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 65302561 + 18215824 = 8081^2 + 4268^2 .

It is a cyclic number.

It is not a de Polignac number, because 83518385 - 2¹⁶ = 83452849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8351834 + ... + 8351843.

It is an arithmetic number, because the mean of its divisors is an integer number (25055517).

Almost surely, 2^83518385 is an apocalyptic number.

It is an amenable number.

83518385 is a deficient number, since it is larger than the sum of its proper divisors (16703683).

83518385 is a wasteful number, since it uses less digits than its factorization.

83518385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16703682.

The product of its digits is 115200, while the sum is 41.

The square root of 83518385 is about 9138.8393683224. The cubic root of 83518385 is about 437.1133083849.

The spelling of 83518385 in words is "eighty-three million, five hundred eighteen thousand, three hundred eighty-five".