8940871471 has 4 divisors (see below), whose sum is σ = 10218138832. Its totient is φ = 7663604112.

The previous prime is 8940871463. The next prime is 8940871483. The reversal of 8940871471 is 1741780498.

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 8940871471 - 2³ = 8940871463 is a prime.

It is a super-3 number, since 3×8940871471³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8940871571) 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, 638633670 + ... + 638633683.

It is an arithmetic number, because the mean of its divisors is an integer number (2554534708).

Almost surely, 2^8940871471 is an apocalyptic number.

8940871471 is a deficient number, since it is larger than the sum of its proper divisors (1277267361).

8940871471 is a wasteful number, since it uses less digits than its factorization.

8940871471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277267360.

The product of its (nonzero) digits is 451584, while the sum is 49.

The square root of 8940871471 is about 94556.1815589018. The cubic root of 8940871471 is about 2075.5185404408.

The spelling of 8940871471 in words is "eight billion, nine hundred forty million, eight hundred seventy-one thousand, four hundred seventy-one".