86193563 has 4 divisors (see below), whose sum is σ = 87162120. Its totient is φ = 85225008.

The previous prime is 86193559. The next prime is 86193571. The reversal of 86193563 is 36539168.

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

It is a cyclic number.

It is not a de Polignac number, because 86193563 - 2² = 86193559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86193563.

It is not an unprimeable number, because it can be changed into a prime (86193463) 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, 484145 + ... + 484322.

It is an arithmetic number, because the mean of its divisors is an integer number (21790530).

Almost surely, 2^86193563 is an apocalyptic number.

86193563 is a deficient number, since it is larger than the sum of its proper divisors (968557).

86193563 is an equidigital number, since it uses as much as digits as its factorization.

86193563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968556.

The product of its digits is 116640, while the sum is 41.

The square root of 86193563 is about 9284.0488473510. The cubic root of 86193563 is about 441.7314062610.

The spelling of 86193563 in words is "eighty-six million, one hundred ninety-three thousand, five hundred sixty-three".