63291089 has 2 divisors, whose sum is σ = 63291090. Its totient is φ = 63291088.

The previous prime is 63291083. The next prime is 63291091. The reversal of 63291089 is 98019236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48790225 + 14500864 = 6985^2 + 3808^2 .

It is a cyclic number.

It is not a de Polignac number, because 63291089 - 2⁸ = 63290833 is a prime.

Together with 63291091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63291083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31645544 + 31645545.

It is an arithmetic number, because the mean of its divisors is an integer number (31645545).

Almost surely, 2^63291089 is an apocalyptic number.

It is an amenable number.

63291089 is a deficient number, since it is larger than the sum of its proper divisors (1).

63291089 is an equidigital number, since it uses as much as digits as its factorization.

63291089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 63291089 is about 7955.5696841898. The cubic root of 63291089 is about 398.5176152081.

The spelling of 63291089 in words is "sixty-three million, two hundred ninety-one thousand, eighty-nine".