64631363 has 2 divisors, whose sum is σ = 64631364. Its totient is φ = 64631362.

The previous prime is 64631323. The next prime is 64631377. The reversal of 64631363 is 36313646.

64631363 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64631363 - 2¹⁰ = 64630339 is a prime.

It is a super-3 number, since 3×64631363³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (64631323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32315681 + 32315682.

It is an arithmetic number, because the mean of its divisors is an integer number (32315682).

Almost surely, 2^64631363 is an apocalyptic number.

64631363 is a deficient number, since it is larger than the sum of its proper divisors (1).

64631363 is an equidigital number, since it uses as much as digits as its factorization.

64631363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 32.

The square root of 64631363 is about 8039.3633454397. The cubic root of 64631363 is about 401.3110378381.

The spelling of 64631363 in words is "sixty-four million, six hundred thirty-one thousand, three hundred sixty-three".