82790329 has 4 divisors (see below), whose sum is σ = 82831140. Its totient is φ = 82749520.

The previous prime is 82790327. The next prime is 82790347. The reversal of 82790329 is 92309728.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48274704 + 34515625 = 6948^2 + 5875^2 .

It is a cyclic number.

It is not a de Polignac number, because 82790329 - 2¹ = 82790327 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82790291 and 82790300.

It is not an unprimeable number, because it can be changed into a prime (82790321) 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 3 ways as a sum of consecutive naturals, for example, 17194 + ... + 21475.

It is an arithmetic number, because the mean of its divisors is an integer number (20707785).

Almost surely, 2^82790329 is an apocalyptic number.

It is an amenable number.

82790329 is a deficient number, since it is larger than the sum of its proper divisors (40811).

82790329 is a wasteful number, since it uses less digits than its factorization.

82790329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40810.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 82790329 is about 9098.9191116308. The cubic root of 82790329 is about 435.8394482928.

The spelling of 82790329 in words is "eighty-two million, seven hundred ninety thousand, three hundred twenty-nine".