82866739 has 8 divisors (see below), whose sum is σ = 85533120. Its totient is φ = 80242536.

The previous prime is 82866737. The next prime is 82866757. The reversal of 82866739 is 93766828.

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

It is a cyclic number.

It is not a de Polignac number, because 82866739 - 2¹ = 82866737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82866692 and 82866701.

It is not an unprimeable number, because it can be changed into a prime (82866737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6529 + ... + 14434.

It is an arithmetic number, because the mean of its divisors is an integer number (10691640).

Almost surely, 2^82866739 is an apocalyptic number.

82866739 is a deficient number, since it is larger than the sum of its proper divisors (2666381).

82866739 is a wasteful number, since it uses less digits than its factorization.

82866739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21089.

The product of its digits is 870912, while the sum is 49.

The square root of 82866739 is about 9103.1169936456. The cubic root of 82866739 is about 435.9734907290.

The spelling of 82866739 in words is "eighty-two million, eight hundred sixty-six thousand, seven hundred thirty-nine".