82557671 has 8 divisors (see below), whose sum is σ = 95644704. Its totient is φ = 69793920.

The previous prime is 82557653. The next prime is 82557677. The reversal of 82557671 is 17675528.

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

It is not a de Polignac number, because 82557671 - 2²² = 78363367 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 (82557677) 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, 80270 + ... + 81291.

It is an arithmetic number, because the mean of its divisors is an integer number (11955588).

Almost surely, 2^82557671 is an apocalyptic number.

82557671 is a deficient number, since it is larger than the sum of its proper divisors (13087033).

82557671 is a wasteful number, since it uses less digits than its factorization.

82557671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161641.

The product of its digits is 117600, while the sum is 41.

The square root of 82557671 is about 9086.1251917415. The cubic root of 82557671 is about 435.4307988342.

The spelling of 82557671 in words is "eighty-two million, five hundred fifty-seven thousand, six hundred seventy-one".