82858660 has 48 divisors (see below), whose sum is σ = 181440000. Its totient is φ = 31749120.

The previous prime is 82858649. The next prime is 82858669. The reversal of 82858660 is 6685828.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (82858669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65716 + ... + 66964.

It is an arithmetic number, because the mean of its divisors is an integer number (3780000).

Almost surely, 2^82858660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82858660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90720000).

82858660 is an abundant number, since it is smaller than the sum of its proper divisors (98581340).

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

82858660 is a wasteful number, since it uses less digits than its factorization.

82858660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396 (or 1394 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 82858660 is about 9102.6732337265. The cubic root of 82858660 is about 435.9593220193.

The spelling of 82858660 in words is "eighty-two million, eight hundred fifty-eight thousand, six hundred sixty".