7171947904 has 32 divisors (see below), whose sum is σ = 15586764840. Its totient is φ = 3259975680.

The previous prime is 7171947877. The next prime is 7171947907. The reversal of 7171947904 is 4097491717.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7171947907) 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, 2545449 + ... + 2548264.

Almost surely, 2^7171947904 is an apocalyptic number.

It is an amenable number.

7171947904 is an abundant number, since it is smaller than the sum of its proper divisors (8414816936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7171947904 is a wasteful number, since it uses less digits than its factorization.

7171947904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5093738 (or 5093726 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 49.

The square root of 7171947904 is about 84687.3538611285. The cubic root of 7171947904 is about 1928.4677274103.

The spelling of 7171947904 in words is "seven billion, one hundred seventy-one million, nine hundred forty-seven thousand, nine hundred four".