1005334987 has 2 divisors, whose sum is σ = 1005334988. Its totient is φ = 1005334986.

The previous prime is 1005334943. The next prime is 1005335017. The reversal of 1005334987 is 7894335001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005334987 is a prime.

It is not a weakly prime, because it can be changed into another prime (1005334787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502667493 + 502667494.

It is an arithmetic number, because the mean of its divisors is an integer number (502667494).

Almost surely, 2^1005334987 is an apocalyptic number.

1005334987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005334987 is an equidigital number, since it uses as much as digits as its factorization.

1005334987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 1005334987 is about 31707.0179455590. The cubic root of 1005334987 is about 1001.7751758859.

Adding to 1005334987 its reverse (7894335001), we get a palindrome (8899669988).

The spelling of 1005334987 in words is "one billion, five million, three hundred thirty-four thousand, nine hundred eighty-seven".