82168563 has 8 divisors (see below), whose sum is σ = 109600000. Its totient is φ = 54758088.

The previous prime is 82168561. The next prime is 82168573. The reversal of 82168563 is 36586128.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82168563 - 2¹ = 82168561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82168561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12258 + ... + 17736.

It is an arithmetic number, because the mean of its divisors is an integer number (13700000).

Almost surely, 2^82168563 is an apocalyptic number.

82168563 is a deficient number, since it is larger than the sum of its proper divisors (27431437).

82168563 is a wasteful number, since it uses less digits than its factorization.

82168563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10481.

The product of its digits is 69120, while the sum is 39.

The square root of 82168563 is about 9064.6876945651. The cubic root of 82168563 is about 434.7456354097.

The spelling of 82168563 in words is "eighty-two million, one hundred sixty-eight thousand, five hundred sixty-three".