97543680 has 160 divisors (see below), whose sum is σ = 336165984. Its totient is φ = 23986176.

The previous prime is 97543673. The next prime is 97543681. The reversal of 97543680 is 8634579.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97543681) 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, 99352 + ... + 100328.

Almost surely, 2^97543680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97543680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168082992).

97543680 is an abundant number, since it is smaller than the sum of its proper divisors (238622304).

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

97543680 is a wasteful number, since it uses less digits than its factorization.

97543680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 97543680 is about 9876.4204041748. The cubic root of 97543680 is about 460.3269257562.

The spelling of 97543680 in words is "ninety-seven million, five hundred forty-three thousand, six hundred eighty".