82431663 has 8 divisors (see below), whose sum is σ = 110347776. Its totient is φ = 54735000.

The previous prime is 82431653. The next prime is 82431683. The reversal of 82431663 is 36613428.

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

It is not a de Polignac number, because 82431663 - 2⁴ = 82431647 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82431653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53983 + ... + 55488.

It is an arithmetic number, because the mean of its divisors is an integer number (13793472).

Almost surely, 2^82431663 is an apocalyptic number.

82431663 is a deficient number, since it is larger than the sum of its proper divisors (27916113).

82431663 is a wasteful number, since it uses less digits than its factorization.

82431663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109725.

The product of its digits is 20736, while the sum is 33.

The square root of 82431663 is about 9079.1884549226. The cubic root of 82431663 is about 435.2091529549.

The spelling of 82431663 in words is "eighty-two million, four hundred thirty-one thousand, six hundred sixty-three".