63230591 has 2 divisors, whose sum is σ = 63230592. Its totient is φ = 63230590.

The previous prime is 63230561. The next prime is 63230593. The reversal of 63230591 is 19503236.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63230591 - 2¹⁰ = 63229567 is a prime.

Together with 63230593, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63230593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31615295 + 31615296.

It is an arithmetic number, because the mean of its divisors is an integer number (31615296).

Almost surely, 2^63230591 is an apocalyptic number.

63230591 is a deficient number, since it is larger than the sum of its proper divisors (1).

63230591 is an equidigital number, since it uses as much as digits as its factorization.

63230591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 63230591 is about 7951.7665332931. The cubic root of 63230591 is about 398.3905978296.

The spelling of 63230591 in words is "sixty-three million, two hundred thirty thousand, five hundred ninety-one".