9939105947 has 8 divisors (see below), whose sum is σ = 10526067936. Its totient is φ = 9352400512.

The previous prime is 9939105929. The next prime is 9939105949. The reversal of 9939105947 is 7495019399.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9939105947 - 2¹⁶ = 9939040411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9939105892 and 9939105901.

It is not an unprimeable number, because it can be changed into a prime (9939105949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18698 + ... + 142224.

It is an arithmetic number, because the mean of its divisors is an integer number (1315758492).

Almost surely, 2^9939105947 is an apocalyptic number.

9939105947 is a deficient number, since it is larger than the sum of its proper divisors (586961989).

9939105947 is a wasteful number, since it uses less digits than its factorization.

9939105947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128277.

The product of its (nonzero) digits is 2755620, while the sum is 56.

The square root of 9939105947 is about 99695.0648076423. The cubic root of 9939105947 is about 2150.0527080642.

The spelling of 9939105947 in words is "nine billion, nine hundred thirty-nine million, one hundred five thousand, nine hundred forty-seven".