80663871 has 8 divisors (see below), whose sum is σ = 107660080. Its totient is φ = 53721792.

The previous prime is 80663867. The next prime is 80663887. The reversal of 80663871 is 17836608.

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

It is not a de Polignac number, because 80663871 - 2² = 80663867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80663831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9916 + ... + 16113.

It is an arithmetic number, because the mean of its divisors is an integer number (13457510).

Almost surely, 2^80663871 is an apocalyptic number.

80663871 is a deficient number, since it is larger than the sum of its proper divisors (26996209).

80663871 is a wasteful number, since it uses less digits than its factorization.

80663871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27065.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 80663871 is about 8981.3067534741. The cubic root of 80663871 is about 432.0755451303.

The spelling of 80663871 in words is "eighty million, six hundred sixty-three thousand, eight hundred seventy-one".