8993992471 has 2 divisors, whose sum is σ = 8993992472. Its totient is φ = 8993992470.

The previous prime is 8993992457. The next prime is 8993992481. The reversal of 8993992471 is 1742993998.

8993992471 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8993992471 - 2⁹ = 8993991959 is a prime.

It is a super-3 number, since 3×8993992471³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8993992451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4496996235 + 4496996236.

It is an arithmetic number, because the mean of its divisors is an integer number (4496996236).

Almost surely, 2^8993992471 is an apocalyptic number.

8993992471 is a deficient number, since it is larger than the sum of its proper divisors (1).

8993992471 is an equidigital number, since it uses as much as digits as its factorization.

8993992471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8817984, while the sum is 61.

The square root of 8993992471 is about 94836.6620616732. The cubic root of 8993992471 is about 2079.6208991508.

The spelling of 8993992471 in words is "eight billion, nine hundred ninety-three million, nine hundred ninety-two thousand, four hundred seventy-one".