63948289 has 4 divisors (see below), whose sum is σ = 63998020. Its totient is φ = 63898560.

The previous prime is 63948259. The next prime is 63948299. The reversal of 63948289 is 98284936.

63948289 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 62489025 + 1459264 = 7905^2 + 1208^2 .

It is a cyclic number.

It is not a de Polignac number, because 63948289 - 2¹¹ = 63946241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63948259) 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, 22884 + ... + 25525.

It is an arithmetic number, because the mean of its divisors is an integer number (15999505).

Almost surely, 2^63948289 is an apocalyptic number.

It is an amenable number.

63948289 is a deficient number, since it is larger than the sum of its proper divisors (49731).

63948289 is a wasteful number, since it uses less digits than its factorization.

63948289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49730.

The product of its digits is 746496, while the sum is 49.

The square root of 63948289 is about 7996.7674093974. The cubic root of 63948289 is about 399.8922397219.

The spelling of 63948289 in words is "sixty-three million, nine hundred forty-eight thousand, two hundred eighty-nine".