9897498000 has 640 divisors, whose sum is σ = 39907445760. Its totient is φ = 2326579200.

The previous prime is 9897497963. The next prime is 9897498019. The reversal of 9897498000 is 8947989.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 16145694 + ... + 16146306.

It is an arithmetic number, because the mean of its divisors is an integer number (62355384).

Almost surely, 2^9897498000 is an apocalyptic number.

9897498000 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9897498000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19953722880).

9897498000 is an abundant number, since it is smaller than the sum of its proper divisors (30009947760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9897498000 is a wasteful number, since it uses less digits than its factorization.

9897498000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 9897498000 is about 99486.1698931062. The cubic root of 9897498000 is about 2147.0482659878.

The spelling of 9897498000 in words is "nine billion, eight hundred ninety-seven million, four hundred ninety-eight thousand".