97197240 has 128 divisors (see below), whose sum is σ = 335301120. Its totient is φ = 22080000.

The previous prime is 97197227. The next prime is 97197257. The reversal of 97197240 is 4279179.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210610 + ... + 211070.

It is an arithmetic number, because the mean of its divisors is an integer number (2619540).

Almost surely, 2^97197240 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 97197240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167650560).

97197240 is an abundant number, since it is smaller than the sum of its proper divisors (238103880).

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

97197240 is a wasteful number, since it uses less digits than its factorization.

97197240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 97197240 is about 9858.8660605569. The cubic root of 97197240 is about 459.7813075142.

The spelling of 97197240 in words is "ninety-seven million, one hundred ninety-seven thousand, two hundred forty".