82631329 has 8 divisors (see below), whose sum is σ = 91671840. Its totient is φ = 73845600.

The previous prime is 82631327. The next prime is 82631347. The reversal of 82631329 is 92313628.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 82631329 - 2¹ = 82631327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82631294 and 82631303.

It is not an unprimeable number, because it can be changed into a prime (82631321) 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, 63012 + ... + 64309.

It is an arithmetic number, because the mean of its divisors is an integer number (11458980).

Almost surely, 2^82631329 is an apocalyptic number.

It is an amenable number.

82631329 is a deficient number, since it is larger than the sum of its proper divisors (9040511).

82631329 is a wasteful number, since it uses less digits than its factorization.

82631329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127391.

The product of its digits is 15552, while the sum is 34.

The square root of 82631329 is about 9090.1776110261. The cubic root of 82631329 is about 435.5602575411.

The spelling of 82631329 in words is "eighty-two million, six hundred thirty-one thousand, three hundred twenty-nine".