80871711 has 8 divisors (see below), whose sum is σ = 108240000. Its totient is φ = 53708952.

The previous prime is 80871709. The next prime is 80871757. The reversal of 80871711 is 11717808.

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

It is not a de Polignac number, because 80871711 - 2¹ = 80871709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80871761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50461 + ... + 52038.

It is an arithmetic number, because the mean of its divisors is an integer number (13530000).

Almost surely, 2^80871711 is an apocalyptic number.

80871711 is a deficient number, since it is larger than the sum of its proper divisors (27368289).

80871711 is a wasteful number, since it uses less digits than its factorization.

80871711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102765.

The product of its (nonzero) digits is 3136, while the sum is 33.

The square root of 80871711 is about 8992.8700090683. The cubic root of 80871711 is about 432.4463247678.

The spelling of 80871711 in words is "eighty million, eight hundred seventy-one thousand, seven hundred eleven".