1005630973 has 2 divisors, whose sum is σ = 1005630974. Its totient is φ = 1005630972.

The previous prime is 1005630947. The next prime is 1005631009. The reversal of 1005630973 is 3790365001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 551216484 + 454414489 = 23478^2 + 21317^2 .

It is a cyclic number.

It is not a de Polignac number, because 1005630973 - 2¹³ = 1005622781 is a prime.

It is a super-2 number, since 2×1005630973² = 2022587307713853458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005630473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502815486 + 502815487.

It is an arithmetic number, because the mean of its divisors is an integer number (502815487).

Almost surely, 2^1005630973 is an apocalyptic number.

It is an amenable number.

1005630973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005630973 is an equidigital number, since it uses as much as digits as its factorization.

1005630973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 1005630973 is about 31711.6851176345. The cubic root of 1005630973 is about 1001.8734788849.

Adding to 1005630973 its reverse (3790365001), we get a palindrome (4795995974).

The spelling of 1005630973 in words is "one billion, five million, six hundred thirty thousand, nine hundred seventy-three".