1068993 has 12 divisors (see below), whose sum is σ = 1582308. Its totient is φ = 695040.

The previous prime is 1068989. The next prime is 1069001. The reversal of 1068993 is 3998601.

It can be written as a sum of positive squares in 2 ways, for example, as 82944 + 986049 = 288^2 + 993^2 .

It is not a de Polignac number, because 1068993 - 2² = 1068989 is a prime.

It is a super-2 number, since 2×1068993² = 2285492068098, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1068913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1080 + ... + 1817.

It is an arithmetic number, because the mean of its divisors is an integer number (131859).

2^1068993 is an apocalyptic number.

It is an amenable number.

1068993 is a deficient number, since it is larger than the sum of its proper divisors (513315).

1068993 is a wasteful number, since it uses less digits than its factorization.

1068993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944 (or 2941 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1068993 is about 1033.9211768796. The cubic root of 1068993 is about 102.2488158510.

The spelling of 1068993 in words is "one million, sixty-eight thousand, nine hundred ninety-three".