1026563957 has 2 divisors, whose sum is σ = 1026563958. Its totient is φ = 1026563956.

The previous prime is 1026563947. The next prime is 1026564047. The reversal of 1026563957 is 7593656201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 705114916 + 321449041 = 26554^2 + 17929^2 .

It is an emirp because it is prime and its reverse (7593656201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1026563957 - 2⁸ = 1026563701 is a prime.

It is a super-2 number, since 2×1026563957² = 2107667115622995698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1026563917) 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, 513281978 + 513281979.

It is an arithmetic number, because the mean of its divisors is an integer number (513281979).

Almost surely, 2^1026563957 is an apocalyptic number.

It is an amenable number.

1026563957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026563957 is an equidigital number, since it uses as much as digits as its factorization.

1026563957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 340200, while the sum is 44.

The square root of 1026563957 is about 32040.0367821262. The cubic root of 1026563957 is about 1008.7773844452. Note that the first 3 decimals are identical.

The spelling of 1026563957 in words is "one billion, twenty-six million, five hundred sixty-three thousand, nine hundred fifty-seven".