1026563 has 2 divisors, whose sum is σ = 1026564. Its totient is φ = 1026562.

The previous prime is 1026547. The next prime is 1026577. The reversal of 1026563 is 3656201.

1026563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1026563 - 2⁴ = 1026547 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1026583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513281 + 513282.

It is an arithmetic number, because the mean of its divisors is an integer number (513282).

2^1026563 is an apocalyptic number.

1026563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026563 is an equidigital number, since it uses as much as digits as its factorization.

1026563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1026563 is about 1013.1944532023. The cubic root of 1026563 is about 100.8777070972.

The spelling of 1026563 in words is "one million, twenty-six thousand, five hundred sixty-three".