97071680 has 56 divisors (see below), whose sum is σ = 232013760. Its totient is φ = 38684160.

The previous prime is 97071659. The next prime is 97071691. The reversal of 97071680 is 8617079.

It is a happy number.

It is a super-2 number, since 2×97071680² = 18845822116044800, which contains 22 as substring.

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, 140135 + ... + 140825.

Almost surely, 2^97071680 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 97071680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116006880).

97071680 is an abundant number, since it is smaller than the sum of its proper divisors (134942080).

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

97071680 is a wasteful number, since it uses less digits than its factorization.

97071680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 97071680 is about 9852.4961304230. The cubic root of 97071680 is about 459.5832394156.

The spelling of 97071680 in words is "ninety-seven million, seventy-one thousand, six hundred eighty".