8991598413 has 32 divisors (see below), whose sum is σ = 14056713216. Its totient is φ = 5006544768.

The previous prime is 8991598411. The next prime is 8991598457. The reversal of 8991598413 is 3148951998.

It is not a de Polignac number, because 8991598413 - 2¹ = 8991598411 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8991598411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91906 + ... + 162572.

It is an arithmetic number, because the mean of its divisors is an integer number (439272288).

Almost surely, 2^8991598413 is an apocalyptic number.

8991598413 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

8991598413 is a deficient number, since it is larger than the sum of its proper divisors (5065114803).

8991598413 is a wasteful number, since it uses less digits than its factorization.

8991598413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70833.

The product of its digits is 2799360, while the sum is 57.

The square root of 8991598413 is about 94824.0392147476. The cubic root of 8991598413 is about 2079.4363620876.

The spelling of 8991598413 in words is "eight billion, nine hundred ninety-one million, five hundred ninety-eight thousand, four hundred thirteen".