9997598 has 16 divisors (see below), whose sum is σ = 17100720. Its totient is φ = 4342656.

The previous prime is 9997597. The next prime is 9997601. The reversal of 9997598 is 8957999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9997597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10868 + ... + 11751.

It is an arithmetic number, because the mean of its divisors is an integer number (1068795).

Almost surely, 2^9997598 is an apocalyptic number.

9997598 is a deficient number, since it is larger than the sum of its proper divisors (7103122).

9997598 is a wasteful number, since it uses less digits than its factorization.

9997598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22651.

The product of its digits is 1837080, while the sum is 56.

The square root of 9997598 is about 3161.8978478123. The cubic root of 9997598 is about 215.4262177814.

The spelling of 9997598 in words is "nine million, nine hundred ninety-seven thousand, five hundred ninety-eight".