97313280 has 80 divisors (see below), whose sum is σ = 311122944. Its totient is φ = 25948160.

The previous prime is 97313273. The next prime is 97313297. The reversal of 97313280 is 8231379.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1345 + ... + 14015.

Almost surely, 2^97313280 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 97313280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155561472).

97313280 is an abundant number, since it is smaller than the sum of its proper divisors (213809664).

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

97313280 is a wasteful number, since it uses less digits than its factorization.

97313280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12697 (or 12681 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 97313280 is about 9864.7493632631. The cubic root of 97313280 is about 459.9642064146.

The spelling of 97313280 in words is "ninety-seven million, three hundred thirteen thousand, two hundred eighty".