82831297 has 4 divisors (see below), whose sum is σ = 82939780. Its totient is φ = 82722816.

The previous prime is 82831291. The next prime is 82831367. The reversal of 82831297 is 79213828.

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 61449921 + 21381376 = 7839^2 + 4624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82831297 is a prime.

It is a super-2 number, since 2×82831297² = 13722047525404418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82831291) 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, 53088 + ... + 54625.

It is an arithmetic number, because the mean of its divisors is an integer number (20734945).

Almost surely, 2^82831297 is an apocalyptic number.

It is an amenable number.

82831297 is a deficient number, since it is larger than the sum of its proper divisors (108483).

82831297 is a wasteful number, since it uses less digits than its factorization.

82831297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108482.

The product of its digits is 48384, while the sum is 40.

The square root of 82831297 is about 9101.1700896094. The cubic root of 82831297 is about 435.9113267612.

The spelling of 82831297 in words is "eighty-two million, eight hundred thirty-one thousand, two hundred ninety-seven".