1002993 has 4 divisors (see below), whose sum is σ = 1337328. Its totient is φ = 668660.

The previous prime is 1002979. The next prime is 1003001. The reversal of 1002993 is 3992001.

It is a happy number.

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 1002993 - 2⁶ = 1002929 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1002913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167163 + ... + 167168.

It is an arithmetic number, because the mean of its divisors is an integer number (334332).

2^1002993 is an apocalyptic number.

It is an amenable number.

1002993 is a deficient number, since it is larger than the sum of its proper divisors (334335).

1002993 is an equidigital number, since it uses as much as digits as its factorization.

1002993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334334.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 1002993 is about 1001.4953819165. The cubic root of 1002993 is about 100.0996672980.

Adding to 1002993 its reverse (3992001), we get a palindrome (4994994).

The spelling of 1002993 in words is "one million, two thousand, nine hundred ninety-three".