82671270 has 64 divisors (see below), whose sum is σ = 217347840. Its totient is φ = 19958400.

The previous prime is 82671217. The next prime is 82671307. The reversal of 82671270 is 7217628.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124740 + ... + 125400.

It is an arithmetic number, because the mean of its divisors is an integer number (3396060).

Almost surely, 2^82671270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82671270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108673920).

82671270 is an abundant number, since it is smaller than the sum of its proper divisors (134676570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82671270 is a wasteful number, since it uses less digits than its factorization.

82671270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 82671270 is about 9092.3742773821. The cubic root of 82671270 is about 435.6304242693.

Adding to 82671270 its reverse (7217628), we get a palindrome (89888898).

The spelling of 82671270 in words is "eighty-two million, six hundred seventy-one thousand, two hundred seventy".