83568663 has 6 divisors (see below), whose sum is σ = 120710304. Its totient is φ = 55712436.

The previous prime is 83568659. The next prime is 83568689. The reversal of 83568663 is 36686538.

83568663 is a `hidden beast` number, since 83 + 568 + 6 + 6 + 3 = 666.

It is not a de Polignac number, because 83568663 - 2² = 83568659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83568613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4642695 + ... + 4642712.

It is an arithmetic number, because the mean of its divisors is an integer number (20118384).

Almost surely, 2^83568663 is an apocalyptic number.

83568663 is a deficient number, since it is larger than the sum of its proper divisors (37141641).

83568663 is a wasteful number, since it uses less digits than its factorization.

83568663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9285413 (or 9285410 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 83568663 is about 9141.5897413962. The cubic root of 83568663 is about 437.2010047419.

The spelling of 83568663 in words is "eighty-three million, five hundred sixty-eight thousand, six hundred sixty-three".