63466321 has 4 divisors (see below), whose sum is σ = 67199652. Its totient is φ = 59732992.

The previous prime is 63466307. The next prime is 63466367. The reversal of 63466321 is 12366436.

63466321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57532225 + 5934096 = 7585^2 + 2436^2 .

It is a cyclic number.

It is not a de Polignac number, because 63466321 - 2¹⁵ = 63433553 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63466391) 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 in 3 ways as a sum of consecutive naturals, for example, 1866640 + ... + 1866673.

It is an arithmetic number, because the mean of its divisors is an integer number (16799913).

Almost surely, 2^63466321 is an apocalyptic number.

It is an amenable number.

63466321 is a deficient number, since it is larger than the sum of its proper divisors (3733331).

63466321 is a wasteful number, since it uses less digits than its factorization.

63466321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3733330.

The product of its digits is 15552, while the sum is 31.

The square root of 63466321 is about 7966.5752365744. The cubic root of 63466321 is about 398.8850639313.

The spelling of 63466321 in words is "sixty-three million, four hundred sixty-six thousand, three hundred twenty-one".