1002239 has 4 divisors (see below), whose sum is σ = 1145424. Its totient is φ = 859056.

The previous prime is 1002227. The next prime is 1002241. The reversal of 1002239 is 9322001.

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

It is a cyclic number.

It is not a de Polignac number, because 1002239 - 2⁸ = 1001983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002259) 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, 71582 + ... + 71595.

It is an arithmetic number, because the mean of its divisors is an integer number (286356).

2^1002239 is an apocalyptic number.

1002239 is a deficient number, since it is larger than the sum of its proper divisors (143185).

1002239 is an equidigital number, since it uses as much as digits as its factorization.

1002239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143184.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1002239 is about 1001.1188740604. The cubic root of 1002239 is about 100.0745777012.

The spelling of 1002239 in words is "one million, two thousand, two hundred thirty-nine".