1002647 has 2 divisors, whose sum is σ = 1002648. Its totient is φ = 1002646.

The previous prime is 1002623. The next prime is 1002653. The reversal of 1002647 is 7462001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1002647 - 2⁶ = 1002583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501323 + 501324.

It is an arithmetic number, because the mean of its divisors is an integer number (501324).

2^1002647 is an apocalyptic number.

1002647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002647 is an equidigital number, since it uses as much as digits as its factorization.

1002647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1002647 is about 1001.3226253311. The cubic root of 1002647 is about 100.0881555964.

Adding to 1002647 its reverse (7462001), we get a palindrome (8464648).

The spelling of 1002647 in words is "one million, two thousand, six hundred forty-seven".