82347663 has 4 divisors (see below), whose sum is σ = 109796888. Its totient is φ = 54898440.

The previous prime is 82347641. The next prime is 82347673. The reversal of 82347663 is 36674328.

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

It is not a de Polignac number, because 82347663 - 2¹² = 82343567 is a prime.

It is a super-2 number, since 2×82347663² = 13562275203123138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82347673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13724608 + ... + 13724613.

It is an arithmetic number, because the mean of its divisors is an integer number (27449222).

Almost surely, 2^82347663 is an apocalyptic number.

82347663 is a deficient number, since it is larger than the sum of its proper divisors (27449225).

82347663 is a wasteful number, since it uses less digits than its factorization.

82347663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27449224.

The product of its digits is 145152, while the sum is 39.

The square root of 82347663 is about 9074.5613117109. The cubic root of 82347663 is about 435.0612729120.

The spelling of 82347663 in words is "eighty-two million, three hundred forty-seven thousand, six hundred sixty-three".