82645706 has 64 divisors (see below), whose sum is σ = 156280320. Its totient is φ = 32218560.

The previous prime is 82645691. The next prime is 82645711. The reversal of 82645706 is 60754628.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 82645706.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 363965 + ... + 364191.

It is an arithmetic number, because the mean of its divisors is an integer number (2441880).

Almost surely, 2^82645706 is an apocalyptic number.

82645706 is a deficient number, since it is larger than the sum of its proper divisors (73634614).

82645706 is a wasteful number, since it uses less digits than its factorization.

82645706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 82645706 is about 9090.9683752612. The cubic root of 82645706 is about 435.5855170754.

The spelling of 82645706 in words is "eighty-two million, six hundred forty-five thousand, seven hundred six".