97663280 has 80 divisors (see below), whose sum is σ = 266795424. Its totient is φ = 32778240.

The previous prime is 97663273. The next prime is 97663297. The reversal of 97663280 is 8236679.

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 15 ways as a sum of consecutive naturals, for example, 7172 + ... + 15708.

Almost surely, 2^97663280 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 97663280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133397712).

97663280 is an abundant number, since it is smaller than the sum of its proper divisors (169132144).

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

97663280 is a wasteful number, since it uses less digits than its factorization.

97663280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8574 (or 8568 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 97663280 is about 9882.4733746163. The cubic root of 97663280 is about 460.5149871946.

The spelling of 97663280 in words is "ninety-seven million, six hundred sixty-three thousand, two hundred eighty".