1002653 has 2 divisors, whose sum is σ = 1002654. Its totient is φ = 1002652.

The previous prime is 1002647. The next prime is 1002679. The reversal of 1002653 is 3562001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 806404 + 196249 = 898^2 + 443^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002653 - 2¹⁰ = 1001629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501326 + 501327.

It is an arithmetic number, because the mean of its divisors is an integer number (501327).

2^1002653 is an apocalyptic number.

It is an amenable number.

1002653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002653 is an equidigital number, since it uses as much as digits as its factorization.

1002653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1002653 is about 1001.3256213640. The cubic root of 1002653 is about 100.0883552439.

Adding to 1002653 its reverse (3562001), we get a palindrome (4564654).

The spelling of 1002653 in words is "one million, two thousand, six hundred fifty-three".