82470571 has 24 divisors (see below), whose sum is σ = 91736064. Its totient is φ = 74017680.

The previous prime is 82470569. The next prime is 82470589. The reversal of 82470571 is 17507428.

It is a happy number.

It is not a de Polignac number, because 82470571 - 2¹ = 82470569 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82470511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 770700 + ... + 770806.

It is an arithmetic number, because the mean of its divisors is an integer number (3822336).

Almost surely, 2^82470571 is an apocalyptic number.

82470571 is a deficient number, since it is larger than the sum of its proper divisors (9265493).

82470571 is a wasteful number, since it uses less digits than its factorization.

82470571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 82470571 is about 9081.3309046637. The cubic root of 82470571 is about 435.2776155401.

Adding to 82470571 its reverse (17507428), we get a palindrome (99977999).

The spelling of 82470571 in words is "eighty-two million, four hundred seventy thousand, five hundred seventy-one".