1008609 has 8 divisors (see below), whose sum is σ = 1536960. Its totient is φ = 576336.

The previous prime is 1008607. The next prime is 1008611. The reversal of 1008609 is 9068001.

It is an interprime number because it is at equal distance from previous prime (1008607) and next prime (1008611).

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

It is not a de Polignac number, because 1008609 - 2¹ = 1008607 is a prime.

It is a super-2 number, since 2×1008609² = 2034584229762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1008607) 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, 23994 + ... + 24035.

It is an arithmetic number, because the mean of its divisors is an integer number (192120).

2^1008609 is an apocalyptic number.

It is an amenable number.

1008609 is a deficient number, since it is larger than the sum of its proper divisors (528351).

1008609 is an equidigital number, since it uses as much as digits as its factorization.

1008609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48039.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1008609 is about 1004.2952753050. The cubic root of 1008609 is about 100.2861470841.

The spelling of 1008609 in words is "one million, eight thousand, six hundred nine".