82680671 has 4 divisors (see below), whose sum is σ = 82710744. Its totient is φ = 82650600.

The previous prime is 82680659. The next prime is 82680709. The reversal of 82680671 is 17608628.

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

It is a cyclic number.

It is not a de Polignac number, because 82680671 - 2¹⁰ = 82679647 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 (82680601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10445 + ... + 16566.

It is an arithmetic number, because the mean of its divisors is an integer number (20677686).

Almost surely, 2^82680671 is an apocalyptic number.

82680671 is a deficient number, since it is larger than the sum of its proper divisors (30073).

82680671 is a wasteful number, since it uses less digits than its factorization.

82680671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30072.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 82680671 is about 9092.8912343654. The cubic root of 82680671 is about 435.6469362788.

The spelling of 82680671 in words is "eighty-two million, six hundred eighty thousand, six hundred seventy-one".