9493939917 has 48 divisors (see below), whose sum is σ = 17112880512. Its totient is φ = 4927426560.

The previous prime is 9493939913. The next prime is 9493939957. The reversal of 9493939917 is 7199393949.

It is not a de Polignac number, because 9493939917 - 2² = 9493939913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9493939913) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 837753 + ... + 849009.

It is an arithmetic number, because the mean of its divisors is an integer number (356518344).

Almost surely, 2^9493939917 is an apocalyptic number.

It is an amenable number.

9493939917 is a deficient number, since it is larger than the sum of its proper divisors (7618940595).

9493939917 is a wasteful number, since it uses less digits than its factorization.

9493939917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12498 (or 12495 counting only the distinct ones).

The product of its digits is 14880348, while the sum is 63.

The square root of 9493939917 is about 97436.8509189413. The cubic root of 9493939917 is about 2117.4613552391.

The spelling of 9493939917 in words is "nine billion, four hundred ninety-three million, nine hundred thirty-nine thousand, nine hundred seventeen".