1002648739 has 2 divisors, whose sum is σ = 1002648740. Its totient is φ = 1002648738.

The previous prime is 1002648719. The next prime is 1002648827. The reversal of 1002648739 is 9378462001.

It is a weak prime.

It is an emirp because it is prime and its reverse (9378462001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1002648739 - 2⁵ = 1002648707 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002648709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501324369 + 501324370.

It is an arithmetic number, because the mean of its divisors is an integer number (501324370).

Almost surely, 2^1002648739 is an apocalyptic number.

1002648739 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002648739 is an equidigital number, since it uses as much as digits as its factorization.

1002648739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1002648739 is about 31664.6291467309. The cubic root of 1002648739 is about 1000.8821346097.

The spelling of 1002648739 in words is "one billion, two million, six hundred forty-eight thousand, seven hundred thirty-nine".