63995841 has 24 divisors (see below), whose sum is σ = 113771840. Its totient is φ = 33755616.

The previous prime is 63995839. The next prime is 63995843. The reversal of 63995841 is 14859936.

It is a happy number.

63995841 is a `hidden beast` number, since 63 + 9 + 9 + 584 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (63995839) and next prime (63995843).

It is not a de Polignac number, because 63995841 - 2¹ = 63995839 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (63995843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38251 + ... + 39888.

Almost surely, 2^63995841 is an apocalyptic number.

It is an amenable number.

63995841 is a deficient number, since it is larger than the sum of its proper divisors (49775999).

63995841 is a wasteful number, since it uses less digits than its factorization.

63995841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78165 (or 78162 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 63995841 is about 7999.7400582769. The cubic root of 63995841 is about 399.9913352290.

The spelling of 63995841 in words is "sixty-three million, nine hundred ninety-five thousand, eight hundred forty-one".