63788531 has 2 divisors, whose sum is σ = 63788532. Its totient is φ = 63788530.

The previous prime is 63788513. The next prime is 63788537. The reversal of 63788531 is 13588736.

Together with previous prime (63788513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63788531 - 2⁶ = 63788467 is a prime.

It is a super-2 number, since 2×63788531² = 8137953374275922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (63788537) 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, 31894265 + 31894266.

It is an arithmetic number, because the mean of its divisors is an integer number (31894266).

Almost surely, 2^63788531 is an apocalyptic number.

63788531 is a deficient number, since it is larger than the sum of its proper divisors (1).

63788531 is an equidigital number, since it uses as much as digits as its factorization.

63788531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 41.

The square root of 63788531 is about 7986.7722516671. The cubic root of 63788531 is about 399.5589534569.

The spelling of 63788531 in words is "sixty-three million, seven hundred eighty-eight thousand, five hundred thirty-one".