97288280 has 64 divisors (see below), whose sum is σ = 233396640. Its totient is φ = 36370432.

The previous prime is 97288273. The next prime is 97288283. The reversal of 97288280 is 8288279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97288283) 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, 117227 + ... + 118053.

Almost surely, 2^97288280 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 97288280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116698320).

97288280 is an abundant number, since it is smaller than the sum of its proper divisors (136108360).

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

97288280 is a wasteful number, since it uses less digits than its factorization.

97288280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 97288280 is about 9863.4821437462. The cubic root of 97288280 is about 459.9248144289.

The spelling of 97288280 in words is "ninety-seven million, two hundred eighty-eight thousand, two hundred eighty".