63441871 has 2 divisors, whose sum is σ = 63441872. Its totient is φ = 63441870.

The previous prime is 63441863. The next prime is 63441941. The reversal of 63441871 is 17814436.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63441871 - 2³ = 63441863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63441571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31720935 + 31720936.

It is an arithmetic number, because the mean of its divisors is an integer number (31720936).

Almost surely, 2^63441871 is an apocalyptic number.

63441871 is a deficient number, since it is larger than the sum of its proper divisors (1).

63441871 is an equidigital number, since it uses as much as digits as its factorization.

63441871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 34.

The square root of 63441871 is about 7965.0405523136. The cubic root of 63441871 is about 398.8338347002.

The spelling of 63441871 in words is "sixty-three million, four hundred forty-one thousand, eight hundred seventy-one".