97281680 has 20 divisors (see below), whose sum is σ = 226180092. Its totient is φ = 38912640.

The previous prime is 97281673. The next prime is 97281707. The reversal of 97281680 is 8618279.

It can be written as a sum of positive squares in 2 ways, for example, as 54405376 + 42876304 = 7376^2 + 6548^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607931 + ... + 608090.

Almost surely, 2^97281680 is an apocalyptic number.

It is an amenable number.

97281680 is an abundant number, since it is smaller than the sum of its proper divisors (128898412).

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

97281680 is a wasteful number, since it uses less digits than its factorization.

97281680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216034 (or 1216028 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 97281680 is about 9863.1475706288. The cubic root of 97281680 is about 459.9144138187.

The spelling of 97281680 in words is "ninety-seven million, two hundred eighty-one thousand, six hundred eighty".