63343971 has 16 divisors (see below), whose sum is σ = 94327200. Its totient is φ = 42011424.

The previous prime is 63343949. The next prime is 63343981. The reversal of 63343971 is 17934336.

It is not a de Polignac number, because 63343971 - 2⁵ = 63343939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63343901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636 + ... + 11273.

It is an arithmetic number, because the mean of its divisors is an integer number (5895450).

Almost surely, 2^63343971 is an apocalyptic number.

63343971 is a deficient number, since it is larger than the sum of its proper divisors (30983229).

63343971 is a wasteful number, since it uses less digits than its factorization.

63343971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12115 (or 12109 counting only the distinct ones).

The product of its digits is 40824, while the sum is 36.

The square root of 63343971 is about 7958.8925737190. The cubic root of 63343971 is about 398.6285762828.

The spelling of 63343971 in words is "sixty-three million, three hundred forty-three thousand, nine hundred seventy-one".