9958123 has 6 divisors (see below), whose sum is σ = 11583996. Its totient is φ = 8535492.

The previous prime is 9958093. The next prime is 9958129. The reversal of 9958123 is 3218599.

It is not a de Polignac number, because 9958123 - 2⁹ = 9957611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9958129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101565 + ... + 101662.

It is an arithmetic number, because the mean of its divisors is an integer number (1930666).

Almost surely, 2^9958123 is an apocalyptic number.

9958123 is a deficient number, since it is larger than the sum of its proper divisors (1625873).

9958123 is a wasteful number, since it uses less digits than its factorization.

9958123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203241 (or 203234 counting only the distinct ones).

The product of its digits is 19440, while the sum is 37.

The square root of 9958123 is about 3155.6493784957. The cubic root of 9958123 is about 215.1423106859.

The spelling of 9958123 in words is "nine million, nine hundred fifty-eight thousand, one hundred twenty-three".