63982971 has 12 divisors (see below), whose sum is σ = 99529248. Its totient is φ = 39374064.

The previous prime is 63982943. The next prime is 63982991. The reversal of 63982971 is 17928936.

63982971 is a `hidden beast` number, since 639 + 8 + 2 + 9 + 7 + 1 = 666.

It is not a de Polignac number, because 63982971 - 2⁶ = 63982907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63982991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273315 + ... + 273548.

It is an arithmetic number, because the mean of its divisors is an integer number (8294104).

Almost surely, 2^63982971 is an apocalyptic number.

63982971 is a deficient number, since it is larger than the sum of its proper divisors (35546277).

63982971 is a wasteful number, since it uses less digits than its factorization.

63982971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546882 (or 546879 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 63982971 is about 7998.9356166930. The cubic root of 63982971 is about 399.9645197696.

The spelling of 63982971 in words is "sixty-three million, nine hundred eighty-two thousand, nine hundred seventy-one".