82648689 has 8 divisors (see below), whose sum is σ = 115998240. Its totient is φ = 52199136.

The previous prime is 82648681. The next prime is 82648703. The reversal of 82648689 is 98684628.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 82648689 - 2³ = 82648681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82648681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 724932 + ... + 725045.

It is an arithmetic number, because the mean of its divisors is an integer number (14499780).

Almost surely, 2^82648689 is an apocalyptic number.

It is an amenable number.

82648689 is a deficient number, since it is larger than the sum of its proper divisors (33349551).

82648689 is a wasteful number, since it uses less digits than its factorization.

82648689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449999.

The product of its digits is 1327104, while the sum is 51.

The square root of 82648689 is about 9091.1324377109. The cubic root of 82648689 is about 435.5907576621.

The spelling of 82648689 in words is "eighty-two million, six hundred forty-eight thousand, six hundred eighty-nine".