8409940971 has 24 divisors (see below), whose sum is σ = 11433323664. Its totient is φ = 5498475840.

The previous prime is 8409940921. The next prime is 8409940997. The reversal of 8409940971 is 1790499048.

It is not a de Polignac number, because 8409940971 - 2⁶ = 8409940907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8409940901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2938081 + ... + 2940941.

It is an arithmetic number, because the mean of its divisors is an integer number (476388486).

Almost surely, 2^8409940971 is an apocalyptic number.

8409940971 is a deficient number, since it is larger than the sum of its proper divisors (3023382693).

8409940971 is a wasteful number, since it uses less digits than its factorization.

8409940971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179 (or 3100 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 8409940971 is about 91705.7303062355. The cubic root of 8409940971 is about 2033.5942996204.

The spelling of 8409940971 in words is "eight billion, four hundred nine million, nine hundred forty thousand, nine hundred seventy-one".