83563605 has 12 divisors (see below), whose sum is σ = 144843660. Its totient is φ = 44567232.

The previous prime is 83563589. The next prime is 83563609. The reversal of 83563605 is 50636538.

It can be written as a sum of positive squares in 2 ways, for example, as 40870449 + 42693156 = 6393^2 + 6534^2 .

It is not a de Polignac number, because 83563605 - 2⁴ = 83563589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83563605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83563609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 928440 + ... + 928529.

It is an arithmetic number, because the mean of its divisors is an integer number (12070305).

Almost surely, 2^83563605 is an apocalyptic number.

It is an amenable number.

83563605 is a deficient number, since it is larger than the sum of its proper divisors (61280055).

83563605 is a wasteful number, since it uses less digits than its factorization.

83563605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856980 (or 1856977 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 83563605 is about 9141.3130894856. The cubic root of 83563605 is about 437.1921840220.

The spelling of 83563605 in words is "eighty-three million, five hundred sixty-three thousand, six hundred five".