968993 has 4 divisors (see below), whose sum is σ = 995220. Its totient is φ = 942768.

The previous prime is 968971. The next prime is 969011. The reversal of 968993 is 399869.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 399869 = 31 ⋅12899.

It can be written as a sum of positive squares in 2 ways, for example, as 833569 + 135424 = 913^2 + 368^2 .

It is a cyclic number.

It is not a de Polignac number, because 968993 - 2¹² = 964897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (968963) 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, 13058 + ... + 13131.

It is an arithmetic number, because the mean of its divisors is an integer number (248805).

2⁹⁶⁸⁹⁹³ is an apocalyptic number.

It is an amenable number.

968993 is a deficient number, since it is larger than the sum of its proper divisors (26227).

968993 is a wasteful number, since it uses less digits than its factorization.

968993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26226.

The product of its digits is 104976, while the sum is 44.

The square root of 968993 is about 984.3744206348. The cubic root of 968993 is about 98.9555628206.

The spelling of 968993 in words is "nine hundred sixty-eight thousand, nine hundred ninety-three".