1008681 has 4 divisors (see below), whose sum is σ = 1344912. Its totient is φ = 672452.

The previous prime is 1008659. The next prime is 1008701. The reversal of 1008681 is 1868001.

1008681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1008681 - 2⁶ = 1008617 is a prime.

It is a super-2 number, since 2×1008681² = 2034874719522, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1008611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168111 + ... + 168116.

It is an arithmetic number, because the mean of its divisors is an integer number (336228).

2^1008681 is an apocalyptic number.

It is an amenable number.

1008681 is a deficient number, since it is larger than the sum of its proper divisors (336231).

1008681 is an equidigital number, since it uses as much as digits as its factorization.

1008681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336230.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 1008681 is about 1004.3311206968. The cubic root of 1008681 is about 100.2885333510.

The spelling of 1008681 in words is "one million, eight thousand, six hundred eighty-one".