83560811 has 4 divisors (see below), whose sum is σ = 83584800. Its totient is φ = 83536824.

The previous prime is 83560787. The next prime is 83560819. The reversal of 83560811 is 11806538.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83560811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83560819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5651 + ... + 14108.

It is an arithmetic number, because the mean of its divisors is an integer number (20896200).

Almost surely, 2^83560811 is an apocalyptic number.

83560811 is a deficient number, since it is larger than the sum of its proper divisors (23989).

83560811 is a wasteful number, since it uses less digits than its factorization.

83560811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23988.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 83560811 is about 9141.1602655243. The cubic root of 83560811 is about 437.1873113721.

The spelling of 83560811 in words is "eighty-three million, five hundred sixty thousand, eight hundred eleven".