82608689 has 4 divisors (see below), whose sum is σ = 82747200. Its totient is φ = 82470180.

The previous prime is 82608667. The next prime is 82608697. The reversal of 82608689 is 98680628.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82608689 - 2²⁰ = 81560113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82608619) 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 3 ways as a sum of consecutive naturals, for example, 68357 + ... + 69554.

It is an arithmetic number, because the mean of its divisors is an integer number (20686800).

Almost surely, 2^82608689 is an apocalyptic number.

It is an amenable number.

82608689 is a deficient number, since it is larger than the sum of its proper divisors (138511).

82608689 is a wasteful number, since it uses less digits than its factorization.

82608689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138510.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 82608689 is about 9088.9322255147. The cubic root of 82608689 is about 435.5204744665.

The spelling of 82608689 in words is "eighty-two million, six hundred eight thousand, six hundred eighty-nine".