9934894971 has 16 divisors (see below), whose sum is σ = 15493014400. Its totient is φ = 6274670184.

The previous prime is 9934894961. The next prime is 9934895017. The reversal of 9934894971 is 1794984399.

It is not a de Polignac number, because 9934894971 - 2¹¹ = 9934892923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9934894899 and 9934894908.

It is not an unprimeable number, because it can be changed into a prime (9934894961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9682621 + ... + 9683646.

It is an arithmetic number, because the mean of its divisors is an integer number (968313400).

Almost surely, 2^9934894971 is an apocalyptic number.

9934894971 is a deficient number, since it is larger than the sum of its proper divisors (5558119429).

9934894971 is a wasteful number, since it uses less digits than its factorization.

9934894971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19366295 (or 19366289 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The square root of 9934894971 is about 99673.9432901097. The cubic root of 9934894971 is about 2149.7490221548.

The spelling of 9934894971 in words is "nine billion, nine hundred thirty-four million, eight hundred ninety-four thousand, nine hundred seventy-one".