63664241 has 4 divisors (see below), whose sum is σ = 64045632. Its totient is φ = 63282852.

The previous prime is 63664229. The next prime is 63664261. The reversal of 63664241 is 14246636.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63664241 - 2⁶ = 63664177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63664198 and 63664207.

It is not an unprimeable number, because it can be changed into a prime (63664261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190445 + ... + 190778.

It is an arithmetic number, because the mean of its divisors is an integer number (16011408).

Almost surely, 2^63664241 is an apocalyptic number.

It is an amenable number.

63664241 is a deficient number, since it is larger than the sum of its proper divisors (381391).

63664241 is a wasteful number, since it uses less digits than its factorization.

63664241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381390.

The product of its digits is 20736, while the sum is 32.

The square root of 63664241 is about 7978.9874670913. The cubic root of 63664241 is about 399.2992752622.

The spelling of 63664241 in words is "sixty-three million, six hundred sixty-four thousand, two hundred forty-one".