8047021711 has 4 divisors (see below), whose sum is σ = 8047413424. Its totient is φ = 8046630000.

The previous prime is 8047021699. The next prime is 8047021769. The reversal of 8047021711 is 1171207408.

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 8047021711 - 2⁷ = 8047021583 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 (8047021511) 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, 163230 + ... + 206731.

It is an arithmetic number, because the mean of its divisors is an integer number (2011853356).

Almost surely, 2^8047021711 is an apocalyptic number.

8047021711 is a deficient number, since it is larger than the sum of its proper divisors (391713).

8047021711 is a wasteful number, since it uses less digits than its factorization.

8047021711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391712.

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 8047021711 is about 89705.1933334966. The cubic root of 8047021711 is about 2003.9108236613.

The spelling of 8047021711 in words is "eight billion, forty-seven million, twenty-one thousand, seven hundred eleven".