82756280 has 32 divisors (see below), whose sum is σ = 187293600. Its totient is φ = 32908416.

The previous prime is 82756279. The next prime is 82756283. The reversal of 82756280 is 8265728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82756283) 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, 941 + ... + 12899.

It is an arithmetic number, because the mean of its divisors is an integer number (5852925).

Almost surely, 2^82756280 is an apocalyptic number.

It is an amenable number.

82756280 is an abundant number, since it is smaller than the sum of its proper divisors (104537320).

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

82756280 is a wasteful number, since it uses less digits than its factorization.

82756280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12143 (or 12139 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 82756280 is about 9097.0478727992. The cubic root of 82756280 is about 435.7796911835.

The spelling of 82756280 in words is "eighty-two million, seven hundred fifty-six thousand, two hundred eighty".