1000863953 has 2 divisors, whose sum is σ = 1000863954. Its totient is φ = 1000863952.

The previous prime is 1000863947. The next prime is 1000863959. The reversal of 1000863953 is 3593680001.

It is a balanced prime because it is at equal distance from previous prime (1000863947) and next prime (1000863959).

It can be written as a sum of positive squares in only one way, i.e., 610682944 + 390181009 = 24712^2 + 19753^2 .

It is an emirp because it is prime and its reverse (3593680001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000863953 - 2⁸ = 1000863697 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1000863959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500431976 + 500431977.

It is an arithmetic number, because the mean of its divisors is an integer number (500431977).

Almost surely, 2^1000863953 is an apocalyptic number.

It is an amenable number.

1000863953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000863953 is an equidigital number, since it uses as much as digits as its factorization.

1000863953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 1000863953 is about 31636.4339488508. The cubic root of 1000863953 is about 1000.2879014381.

The spelling of 1000863953 in words is "one billion, eight hundred sixty-three thousand, nine hundred fifty-three".