8020785971 has 8 divisors (see below), whose sum is σ = 8813818224. Its totient is φ = 7238398720.

The previous prime is 8020785967. The next prime is 8020785973. The reversal of 8020785971 is 1795870208.

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 8020785971 - 2² = 8020785967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8020785973) 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, 2659670 + ... + 2662683.

It is an arithmetic number, because the mean of its divisors is an integer number (1101727278).

Almost surely, 2^8020785971 is an apocalyptic number.

8020785971 is a deficient number, since it is larger than the sum of its proper divisors (793032253).

8020785971 is a wasteful number, since it uses less digits than its factorization.

8020785971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5322501.

The product of its (nonzero) digits is 282240, while the sum is 47.

The square root of 8020785971 is about 89558.8408310425. The cubic root of 8020785971 is about 2001.7306662153.

The spelling of 8020785971 in words is "eight billion, twenty million, seven hundred eighty-five thousand, nine hundred seventy-one".