82208587 has 4 divisors (see below), whose sum is σ = 82226800. Its totient is φ = 82190376.

The previous prime is 82208569. The next prime is 82208597. The reversal of 82208587 is 78580228.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82208587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82208527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3289 + ... + 13237.

It is an arithmetic number, because the mean of its divisors is an integer number (20556700).

Almost surely, 2^82208587 is an apocalyptic number.

82208587 is a deficient number, since it is larger than the sum of its proper divisors (18213).

82208587 is an equidigital number, since it uses as much as digits as its factorization.

82208587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18212.

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 82208587 is about 9066.8951135436. The cubic root of 82208587 is about 434.8162116100.

It can be divided in two parts, 8220 and 8587, that added together give a 5-th power (16807 = 7⁵).

The spelling of 82208587 in words is "eighty-two million, two hundred eight thousand, five hundred eighty-seven".