63967841 has 8 divisors (see below), whose sum is σ = 73816704. Its totient is φ = 54296640.

The previous prime is 63967837. The next prime is 63967879. The reversal of 63967841 is 14876936.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63967841 - 2² = 63967837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63967792 and 63967801.

It is not an unprimeable number, because it can be changed into a prime (63967811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43640 + ... + 45081.

It is an arithmetic number, because the mean of its divisors is an integer number (9227088).

Almost surely, 2^63967841 is an apocalyptic number.

It is an amenable number.

63967841 is a deficient number, since it is larger than the sum of its proper divisors (9848863).

63967841 is a wasteful number, since it uses less digits than its factorization.

63967841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88831.

The product of its digits is 217728, while the sum is 44.

The square root of 63967841 is about 7997.9898099460. The cubic root of 63967841 is about 399.9329908584.

The spelling of 63967841 in words is "sixty-three million, nine hundred sixty-seven thousand, eight hundred forty-one".