982609 has 4 divisors (see below), whose sum is σ = 1009204. Its totient is φ = 956016.

The previous prime is 982603. The next prime is 982613. The reversal of 982609 is 906289.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 685584 + 297025 = 828^2 + 545^2 .

It is a cyclic number.

It is not a de Polignac number, because 982609 - 2⁵ = 982577 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (982603) 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 3 ways as a sum of consecutive naturals, for example, 13242 + ... + 13315.

It is an arithmetic number, because the mean of its divisors is an integer number (252301).

2⁹⁸²⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

982609 is a deficient number, since it is larger than the sum of its proper divisors (26595).

982609 is a wasteful number, since it uses less digits than its factorization.

982609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26594.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 982609 is about 991.2663617817. The cubic root of 982609 is about 99.4169066296.

The spelling of 982609 in words is "nine hundred eighty-two thousand, six hundred nine".