63830971 has 4 divisors (see below), whose sum is σ = 67585752. Its totient is φ = 60076192.

The previous prime is 63830969. The next prime is 63830993. The reversal of 63830971 is 17903836.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63830971 - 2¹ = 63830969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63830971.

It is not an unprimeable number, because it can be changed into a prime (63830951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1877365 + ... + 1877398.

It is an arithmetic number, because the mean of its divisors is an integer number (16896438).

Almost surely, 2^63830971 is an apocalyptic number.

63830971 is a deficient number, since it is larger than the sum of its proper divisors (3754781).

63830971 is a wasteful number, since it uses less digits than its factorization.

63830971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3754780.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 63830971 is about 7989.4287029800. The cubic root of 63830971 is about 399.6475457813.

The spelling of 63830971 in words is "sixty-three million, eight hundred thirty thousand, nine hundred seventy-one".