97998587 has 8 divisors (see below), whose sum is σ = 99863280. Its totient is φ = 96140800.

The previous prime is 97998581. The next prime is 97998601. The reversal of 97998587 is 78589979.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97998587 is a prime.

It is a Duffinian number.

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (97998581) 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 7 ways as a sum of consecutive naturals, for example, 33587 + ... + 36387.

It is an arithmetic number, because the mean of its divisors is an integer number (12482910).

Almost surely, 2^97998587 is an apocalyptic number.

97998587 is a deficient number, since it is larger than the sum of its proper divisors (1864693).

97998587 is a wasteful number, since it uses less digits than its factorization.

97998587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453.

The product of its digits is 11430720, while the sum is 62.

The square root of 97998587 is about 9899.4235690771. The cubic root of 97998587 is about 461.0414133631.

The spelling of 97998587 in words is "ninety-seven million, nine hundred ninety-eight thousand, five hundred eighty-seven".