82665768 has 16 divisors (see below), whose sum is σ = 206664480. Its totient is φ = 27555248.

The previous prime is 82665727. The next prime is 82665769. The reversal of 82665768 is 86756628.

It is not an unprimeable number, because it can be changed into a prime (82665769) 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, 1722180 + ... + 1722227.

It is an arithmetic number, because the mean of its divisors is an integer number (12916530).

Almost surely, 2^82665768 is an apocalyptic number.

It is an amenable number.

82665768 is an abundant number, since it is smaller than the sum of its proper divisors (123998712).

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

82665768 is a wasteful number, since it uses less digits than its factorization.

82665768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444416 (or 3444412 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 82665768 is about 9092.0717111118. The cubic root of 82665768 is about 435.6207599213.

The spelling of 82665768 in words is "eighty-two million, six hundred sixty-five thousand, seven hundred sixty-eight".