1002739 has 2 divisors, whose sum is σ = 1002740. Its totient is φ = 1002738.

The previous prime is 1002721. The next prime is 1002751. The reversal of 1002739 is 9372001.

It is a strong prime.

It is an emirp because it is prime and its reverse (9372001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1002739 - 2⁹ = 1002227 is a prime.

It is a Chen prime.

1002739 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1002709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501369 + 501370.

It is an arithmetic number, because the mean of its divisors is an integer number (501370).

2^1002739 is an apocalyptic number.

1002739 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002739 is an equidigital number, since it uses as much as digits as its factorization.

1002739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 1002739 is about 1001.3685635170. The cubic root of 1002739 is about 100.0912167697.

The spelling of 1002739 in words is "one million, two thousand, seven hundred thirty-nine".