9903729071 has 16 divisors (see below), whose sum is σ = 10386200160. Its totient is φ = 9431049600.

The previous prime is 9903729019. The next prime is 9903729103. The reversal of 9903729071 is 1709273099.

It is a cyclic number.

It is not a de Polignac number, because 9903729071 - 2⁶ = 9903729007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9903729571) 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, 1568621 + ... + 1574921.

It is an arithmetic number, because the mean of its divisors is an integer number (649137510).

Almost surely, 2^9903729071 is an apocalyptic number.

9903729071 is a deficient number, since it is larger than the sum of its proper divisors (482471089).

9903729071 is a wasteful number, since it uses less digits than its factorization.

9903729071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7066.

The product of its (nonzero) digits is 214326, while the sum is 47.

The square root of 9903729071 is about 99517.4812331984. The cubic root of 9903729071 is about 2147.4987368597.

The spelling of 9903729071 in words is "nine billion, nine hundred three million, seven hundred twenty-nine thousand, seventy-one".