1068691 has 4 divisors (see below), whose sum is σ = 1150912. Its totient is φ = 986472.

The previous prime is 1068677. The next prime is 1068701. The reversal of 1068691 is 1968601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1968601 = 79 ⋅24919.

It is a cyclic number.

It is not a de Polignac number, because 1068691 - 2¹¹ = 1066643 is a prime.

It is a super-2 number, since 2×1068691² = 2284200906962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1068611) 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, 41091 + ... + 41116.

It is an arithmetic number, because the mean of its divisors is an integer number (287728).

2^1068691 is an apocalyptic number.

1068691 is a deficient number, since it is larger than the sum of its proper divisors (82221).

1068691 is an equidigital number, since it uses as much as digits as its factorization.

1068691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82220.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1068691 is about 1033.7751206138. The cubic root of 1068691 is about 102.2391862118.

The spelling of 1068691 in words is "one million, sixty-eight thousand, six hundred ninety-one".