82666874 has 8 divisors (see below), whose sum is σ = 124040928. Its totient is φ = 41319900.

The previous prime is 82666867. The next prime is 82666931. The reversal of 82666874 is 47866628.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4859 + ... + 13745.

It is an arithmetic number, because the mean of its divisors is an integer number (15505116).

Almost surely, 2^82666874 is an apocalyptic number.

82666874 is a deficient number, since it is larger than the sum of its proper divisors (41374054).

82666874 is a wasteful number, since it uses less digits than its factorization.

82666874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13540.

The product of its digits is 774144, while the sum is 47.

The square root of 82666874 is about 9092.1325331299. The cubic root of 82666874 is about 435.6227026618.

The spelling of 82666874 in words is "eighty-two million, six hundred sixty-six thousand, eight hundred seventy-four".