63948641 has 4 divisors (see below), whose sum is σ = 64056000. Its totient is φ = 63841284.

The previous prime is 63948593. The next prime is 63948667. The reversal of 63948641 is 14684936.

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 63948641 - 2¹⁰ = 63947617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63948541) 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, 52781 + ... + 53978.

It is an arithmetic number, because the mean of its divisors is an integer number (16014000).

Almost surely, 2^63948641 is an apocalyptic number.

It is an amenable number.

63948641 is a deficient number, since it is larger than the sum of its proper divisors (107359).

63948641 is a wasteful number, since it uses less digits than its factorization.

63948641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107358.

The product of its digits is 124416, while the sum is 41.

The square root of 63948641 is about 7996.7894182603. The cubic root of 63948641 is about 399.8929734492.

The spelling of 63948641 in words is "sixty-three million, nine hundred forty-eight thousand, six hundred forty-one".