1002823 has 8 divisors (see below), whose sum is σ = 1065600. Its totient is φ = 941688.

The previous prime is 1002821. The next prime is 1002851. The reversal of 1002823 is 3282001.

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 1002823 - 2¹ = 1002821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002797 and 1002806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 988 + ... + 1726.

It is an arithmetic number, because the mean of its divisors is an integer number (133200).

2^1002823 is an apocalyptic number.

1002823 is a deficient number, since it is larger than the sum of its proper divisors (62777).

1002823 is an equidigital number, since it uses as much as digits as its factorization.

1002823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1002823 is about 1001.4105052375. The cubic root of 1002823 is about 100.0940115905.

Adding to 1002823 its reverse (3282001), we get a palindrome (4284824).

The spelling of 1002823 in words is "one million, two thousand, eight hundred twenty-three".