9998597032 has 64 divisors (see below), whose sum is σ = 19657440000. Its totient is φ = 4761711360.

The previous prime is 9998597017. The next prime is 9998597033. The reversal of 9998597032 is 2307958999.

It is not an unprimeable number, because it can be changed into a prime (9998597033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6852319 + ... + 6853777.

It is an arithmetic number, because the mean of its divisors is an integer number (307147500).

Almost surely, 2^9998597032 is an apocalyptic number.

It is an amenable number.

9998597032 is a deficient number, since it is larger than the sum of its proper divisors (9658842968).

9998597032 is a wasteful number, since it uses less digits than its factorization.

9998597032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874 (or 1870 counting only the distinct ones).

The product of its (nonzero) digits is 11022480, while the sum is 61.

The square root of 9998597032 is about 99992.9849139428. The cubic root of 9998597032 is about 2154.3339318888. Note that the first 3 decimals are identical.

The spelling of 9998597032 in words is "nine billion, nine hundred ninety-eight million, five hundred ninety-seven thousand, thirty-two".