1008993 has 8 divisors (see below), whose sum is σ = 1360800. Its totient is φ = 664928.

The previous prime is 1008991. The next prime is 1009007. The reversal of 1008993 is 3998001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1008993 - 2¹ = 1008991 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1008993.

It is not an unprimeable number, because it can be changed into a prime (1008991) 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 7 ways as a sum of consecutive naturals, for example, 1623 + ... + 2156.

It is an arithmetic number, because the mean of its divisors is an integer number (170100).

2^1008993 is an apocalyptic number.

It is an amenable number.

1008993 is a deficient number, since it is larger than the sum of its proper divisors (351807).

1008993 is an equidigital number, since it uses as much as digits as its factorization.

1008993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 1008993 is about 1004.4864359463. The cubic root of 1008993 is about 100.2988725289.

The spelling of 1008993 in words is "one million, eight thousand, nine hundred ninety-three".