80806711 has 4 divisors (see below), whose sum is σ = 81121392. Its totient is φ = 80492032.

The previous prime is 80806709. The next prime is 80806783. The reversal of 80806711 is 11760808.

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 80806711 - 2¹ = 80806709 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80806111) 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, 156955 + ... + 157468.

It is an arithmetic number, because the mean of its divisors is an integer number (20280348).

Almost surely, 2^80806711 is an apocalyptic number.

80806711 is a deficient number, since it is larger than the sum of its proper divisors (314681).

80806711 is a wasteful number, since it uses less digits than its factorization.

80806711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314680.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 80806711 is about 8989.2553084224. The cubic root of 80806711 is about 432.3304352726.

The spelling of 80806711 in words is "eighty million, eight hundred six thousand, seven hundred eleven".