82749585 has 8 divisors (see below), whose sum is σ = 132399360. Its totient is φ = 44133104.

The previous prime is 82749581. The next prime is 82749637. The reversal of 82749585 is 58594728.

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 82749585 - 2² = 82749581 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82749581) 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, 2758305 + ... + 2758334.

It is an arithmetic number, because the mean of its divisors is an integer number (16549920).

Almost surely, 2^82749585 is an apocalyptic number.

It is an amenable number.

82749585 is a deficient number, since it is larger than the sum of its proper divisors (49649775).

82749585 is a wasteful number, since it uses less digits than its factorization.

82749585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5516647.

The product of its digits is 806400, while the sum is 48.

The square root of 82749585 is about 9096.6798888386. The cubic root of 82749585 is about 435.7679393111.

The spelling of 82749585 in words is "eighty-two million, seven hundred forty-nine thousand, five hundred eighty-five".