82716705 has 24 divisors (see below), whose sum is σ = 143994240. Its totient is φ = 43925280.

The previous prime is 82716701. The next prime is 82716707. The reversal of 82716705 is 50761728.

It is not a de Polignac number, because 82716705 - 2² = 82716701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82716705.

It is not an unprimeable number, because it can be changed into a prime (82716701) 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 23 ways as a sum of consecutive naturals, for example, 6910 + ... + 14600.

It is an arithmetic number, because the mean of its divisors is an integer number (5999760).

Almost surely, 2^82716705 is an apocalyptic number.

It is an amenable number.

82716705 is a deficient number, since it is larger than the sum of its proper divisors (61277535).

82716705 is a wasteful number, since it uses less digits than its factorization.

82716705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7941 (or 7938 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 82716705 is about 9094.8724564999. The cubic root of 82716705 is about 435.7102151627.

The spelling of 82716705 in words is "eighty-two million, seven hundred sixteen thousand, seven hundred five".