82724271 has 16 divisors (see below), whose sum is σ = 132691200. Its totient is φ = 44782848.

The previous prime is 82724263. The next prime is 82724287. The reversal of 82724271 is 17242728.

It is not a de Polignac number, because 82724271 - 2³ = 82724263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82724221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103266 + ... + 104063.

It is an arithmetic number, because the mean of its divisors is an integer number (8293200).

Almost surely, 2^82724271 is an apocalyptic number.

82724271 is a deficient number, since it is larger than the sum of its proper divisors (49966929).

82724271 is a wasteful number, since it uses less digits than its factorization.

82724271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207358.

The product of its digits is 12544, while the sum is 33.

The square root of 82724271 is about 9095.2883956475. The cubic root of 82724271 is about 435.7234993918.

Adding to 82724271 its reverse (17242728), we get a palindrome (99966999).

The spelling of 82724271 in words is "eighty-two million, seven hundred twenty-four thousand, two hundred seventy-one".