1002609 has 12 divisors (see below), whose sum is σ = 1533636. Its totient is φ = 628992.

The previous prime is 1002583. The next prime is 1002619. The reversal of 1002609 is 9062001.

It can be written as a sum of positive squares in 2 ways, for example, as 567009 + 435600 = 753^2 + 660^2 .

It is not a de Polignac number, because 1002609 - 2⁵ = 1002577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002591 and 1002600.

It is not an unprimeable number, because it can be changed into a prime (1002619) 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 11 ways as a sum of consecutive naturals, for example, 3124 + ... + 3429.

It is an arithmetic number, because the mean of its divisors is an integer number (127803).

2^1002609 is an apocalyptic number.

It is an amenable number.

1002609 is a deficient number, since it is larger than the sum of its proper divisors (531027).

1002609 is a wasteful number, since it uses less digits than its factorization.

1002609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6576 (or 6573 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1002609 is about 1001.3036502480. The cubic root of 1002609 is about 100.0868911441.

The spelling of 1002609 in words is "one million, two thousand, six hundred nine".