83563105 has 4 divisors (see below), whose sum is σ = 100275732. Its totient is φ = 66850480.

The previous prime is 83563099. The next prime is 83563141. The reversal of 83563105 is 50136538.

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 58553104 + 25010001 = 7652^2 + 5001^2 .

It is not a de Polignac number, because 83563105 - 2⁷ = 83562977 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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, 8356306 + ... + 8356315.

It is an arithmetic number, because the mean of its divisors is an integer number (25068933).

Almost surely, 2^83563105 is an apocalyptic number.

It is an amenable number.

83563105 is a deficient number, since it is larger than the sum of its proper divisors (16712627).

83563105 is a wasteful number, since it uses less digits than its factorization.

83563105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16712626.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 83563105 is about 9141.2857410760. The cubic root of 83563105 is about 437.1913120454.

The spelling of 83563105 in words is "eighty-three million, five hundred sixty-three thousand, one hundred five".