82752805 has 16 divisors (see below), whose sum is σ = 103284720. Its totient is φ = 63572992.

The previous prime is 82752799. The next prime is 82752829. The reversal of 82752805 is 50825728.

It can be written as a sum of positive squares in 8 ways, for example, as 142884 + 82609921 = 378^2 + 9089^2 .

It is a cyclic number.

It is not a de Polignac number, because 82752805 - 2³ = 82752797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27117 + ... + 30013.

It is an arithmetic number, because the mean of its divisors is an integer number (6455295).

Almost surely, 2^82752805 is an apocalyptic number.

It is an amenable number.

82752805 is a deficient number, since it is larger than the sum of its proper divisors (20531915).

82752805 is a wasteful number, since it uses less digits than its factorization.

82752805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3128.

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 82752805 is about 9096.8568747672. The cubic root of 82752805 is about 435.7735915230.

The spelling of 82752805 in words is "eighty-two million, seven hundred fifty-two thousand, eight hundred five".