1005002 has 4 divisors (see below), whose sum is σ = 1507506. Its totient is φ = 502500.

The previous prime is 1004987. The next prime is 1005007. The reversal of 1005002 is 2005001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 606841 + 398161 = 779^2 + 631^2 .

It is not an unprimeable number, because it can be changed into a prime (1005007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251249 + ... + 251252.

2^1005002 is an apocalyptic number.

1005002 is a deficient number, since it is larger than the sum of its proper divisors (502504).

1005002 is an equidigital number, since it uses as much as digits as its factorization.

1005002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502503.

The product of its (nonzero) digits is 10, while the sum is 8.

The square root of 1005002 is about 1002.4978802970. The cubic root of 1005002 is about 100.1664561033.

Subtracting 1005002 from its reverse (2005001), we obtain a palindrome (999999).

The spelling of 1005002 in words is "one million, five thousand, two".