82047563 has 4 divisors (see below), whose sum is σ = 88358928. Its totient is φ = 75736200.

The previous prime is 82047557. The next prime is 82047577. The reversal of 82047563 is 36574028.

It is a happy number.

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 82047563 - 2⁸ = 82047307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82047523) 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, 3155663 + ... + 3155688.

It is an arithmetic number, because the mean of its divisors is an integer number (22089732).

Almost surely, 2^82047563 is an apocalyptic number.

82047563 is a deficient number, since it is larger than the sum of its proper divisors (6311365).

82047563 is a wasteful number, since it uses less digits than its factorization.

82047563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311364.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 82047563 is about 9058.0109847582. The cubic root of 82047563 is about 434.5321309482.

The spelling of 82047563 in words is "eighty-two million, forty-seven thousand, five hundred sixty-three".