1005364873 has 2 divisors, whose sum is σ = 1005364874. Its totient is φ = 1005364872.

The previous prime is 1005364861. The next prime is 1005364901. The reversal of 1005364873 is 3784635001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 626400784 + 378964089 = 25028^2 + 19467^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005364873 is a prime.

It is a super-2 number, since 2×1005364873² = 2021517055724612258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1005364673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502682436 + 502682437.

It is an arithmetic number, because the mean of its divisors is an integer number (502682437).

Almost surely, 2^1005364873 is an apocalyptic number.

It is an amenable number.

1005364873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005364873 is an equidigital number, since it uses as much as digits as its factorization.

1005364873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 1005364873 is about 31707.4892257334. The cubic root of 1005364873 is about 1001.7851025129.

Adding to 1005364873 its reverse (3784635001), we get a palindrome (4789999874).

The spelling of 1005364873 in words is "one billion, five million, three hundred sixty-four thousand, eight hundred seventy-three".