1068981 has 4 divisors (see below), whose sum is σ = 1425312. Its totient is φ = 712652.

The previous prime is 1068941. The next prime is 1068989. The reversal of 1068981 is 1898601.

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 1068981 - 2⁶ = 1068917 is a prime.

It is a super-2 number, since 2×1068981² = 2285440756722, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068989) 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 3 ways as a sum of consecutive naturals, for example, 178161 + ... + 178166.

It is an arithmetic number, because the mean of its divisors is an integer number (356328).

2^1068981 is an apocalyptic number.

It is an amenable number.

1068981 is a deficient number, since it is larger than the sum of its proper divisors (356331).

1068981 is an equidigital number, since it uses as much as digits as its factorization.

1068981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356330.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 1068981 is about 1033.9153737130. The cubic root of 1068981 is about 102.2484332509.

The spelling of 1068981 in words is "one million, sixty-eight thousand, nine hundred eighty-one".