63863231 has 2 divisors, whose sum is σ = 63863232. Its totient is φ = 63863230.

The previous prime is 63863207. The next prime is 63863273. The reversal of 63863231 is 13236836.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63863231 - 2⁶ = 63863167 is a prime.

It is a super-2 number, since 2×63863231² = 8157024547518722, which contains 22 as substring.

It is equal to p_3777440 and since 63863231 and 3777440 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63863431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31931615 + 31931616.

It is an arithmetic number, because the mean of its divisors is an integer number (31931616).

Almost surely, 2^63863231 is an apocalyptic number.

63863231 is a deficient number, since it is larger than the sum of its proper divisors (1).

63863231 is an equidigital number, since it uses as much as digits as its factorization.

63863231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 32.

The square root of 63863231 is about 7991.4473657780. The cubic root of 63863231 is about 399.7148613715.

The spelling of 63863231 in words is "sixty-three million, eight hundred sixty-three thousand, two hundred thirty-one".