63872771 has 8 divisors (see below), whose sum is σ = 66999840. Its totient is φ = 60774912.

The previous prime is 63872747. The next prime is 63872773. The reversal of 63872771 is 17727836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63872771 - 2¹⁸ = 63610627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63872773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2756 + ... + 11633.

It is an arithmetic number, because the mean of its divisors is an integer number (8374980).

Almost surely, 2^63872771 is an apocalyptic number.

63872771 is a deficient number, since it is larger than the sum of its proper divisors (3127069).

63872771 is a wasteful number, since it uses less digits than its factorization.

63872771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14605.

The product of its digits is 98784, while the sum is 41.

The square root of 63872771 is about 7992.0442316093. The cubic root of 63872771 is about 399.7347637465.

The spelling of 63872771 in words is "sixty-three million, eight hundred seventy-two thousand, seven hundred seventy-one".