1002999 has 4 divisors (see below), whose sum is σ = 1337336. Its totient is φ = 668664.

The previous prime is 1002979. The next prime is 1003001. The reversal of 1002999 is 9992001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9992001 = 3 ⋅3330667.

It is not a de Polignac number, because 1002999 - 2⁷ = 1002871 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002929) 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, 167164 + ... + 167169.

It is an arithmetic number, because the mean of its divisors is an integer number (334334).

2^1002999 is an apocalyptic number.

1002999 is a deficient number, since it is larger than the sum of its proper divisors (334337).

1002999 is an equidigital number, since it uses as much as digits as its factorization.

1002999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334336.

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 1002999 is about 1001.4983774325. The cubic root of 1002999 is about 100.0998668995.

The spelling of 1002999 in words is "one million, two thousand, nine hundred ninety-nine".