82660270 has 32 divisors (see below), whose sum is σ = 185504256. Its totient is φ = 25764000.

The previous prime is 82660267. The next prime is 82660271. The reversal of 82660270 is 7206628.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82660271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52906 + ... + 54445.

It is an arithmetic number, because the mean of its divisors is an integer number (5797008).

Almost surely, 2^82660270 is an apocalyptic number.

82660270 is an abundant number, since it is smaller than the sum of its proper divisors (102843986).

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

82660270 is a wasteful number, since it uses less digits than its factorization.

82660270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107376.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 82660270 is about 9091.7693547516. The cubic root of 82660270 is about 435.6111021710.

Adding to 82660270 its reverse (7206628), we get a palindrome (89866898).

The spelling of 82660270 in words is "eighty-two million, six hundred sixty thousand, two hundred seventy".