63456331 has 2 divisors, whose sum is σ = 63456332. Its totient is φ = 63456330.

The previous prime is 63456319. The next prime is 63456383. The reversal of 63456331 is 13365436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63456331 - 2⁵ = 63456299 is a prime.

It is a super-2 number, since 2×63456331² = 8053411887963122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63456293 and 63456302.

It is not a weakly prime, because it can be changed into another prime (63456431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31728165 + 31728166.

It is an arithmetic number, because the mean of its divisors is an integer number (31728166).

Almost surely, 2^63456331 is an apocalyptic number.

63456331 is a deficient number, since it is larger than the sum of its proper divisors (1).

63456331 is an equidigital number, since it uses as much as digits as its factorization.

63456331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 31.

The square root of 63456331 is about 7965.9482172557. The cubic root of 63456331 is about 398.8641338232.

It can be divided in two parts, 634 and 56331, that added together give a palindrome (56965).

The spelling of 63456331 in words is "sixty-three million, four hundred fifty-six thousand, three hundred thirty-one".