1002493 has 2 divisors, whose sum is σ = 1002494. Its totient is φ = 1002492.

The previous prime is 1002487. The next prime is 1002503. The reversal of 1002493 is 3942001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 840889 + 161604 = 917^2 + 402^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002493 - 2⁹ = 1001981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501246 + 501247.

It is an arithmetic number, because the mean of its divisors is an integer number (501247).

2^1002493 is an apocalyptic number.

It is an amenable number.

1002493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002493 is an equidigital number, since it uses as much as digits as its factorization.

1002493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1002493 is about 1001.2457240858. The cubic root of 1002493 is about 100.0830310394.

Adding to 1002493 its reverse (3942001), we get a palindrome (4944494).

The spelling of 1002493 in words is "one million, two thousand, four hundred ninety-three".