9917935958 has 32 divisors (see below), whose sum is σ = 17924087808. Its totient is φ = 4025901600.

The previous prime is 9917935933. The next prime is 9917935967. The reversal of 9917935958 is 8595397199.

It is a junction number, because it is equal to n+sod(n) for n = 9917935894 and 9917935903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222713 + ... + 263508.

It is an arithmetic number, because the mean of its divisors is an integer number (560127744).

Almost surely, 2^9917935958 is an apocalyptic number.

9917935958 is a deficient number, since it is larger than the sum of its proper divisors (8006151850).

9917935958 is a wasteful number, since it uses less digits than its factorization.

9917935958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486308.

The product of its digits is 27556200, while the sum is 65.

The square root of 9917935958 is about 99588.8345046773. The cubic root of 9917935958 is about 2148.5251076600.

The spelling of 9917935958 in words is "nine billion, nine hundred seventeen million, nine hundred thirty-five thousand, nine hundred fifty-eight".