263089 has 2 divisors, whose sum is σ = 263090. Its totient is φ = 263088.

The previous prime is 263083. The next prime is 263101. The reversal of 263089 is 980362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242064 + 21025 = 492^2 + 145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (263083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131544 + 131545.

It is an arithmetic number, because the mean of its divisors is an integer number (131545).

2²⁶³⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

263089 is a deficient number, since it is larger than the sum of its proper divisors (1).

263089 is an equidigital number, since it uses as much as digits as its factorization.

263089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 263089 is about 512.9220213639. The cubic root of 263089 is about 64.0768120710.

The spelling of 263089 in words is "two hundred sixty-three thousand, eighty-nine".