97191 has 6 divisors (see below), whose sum is σ = 140400. Its totient is φ = 64788.

The previous prime is 97187. The next prime is 97213. The reversal of 97191 is 19179.

It is not a de Polignac number, because 97191 - 2² = 97187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5391 + ... + 5408.

It is an arithmetic number, because the mean of its divisors is an integer number (23400).

2⁹⁷¹⁹¹ is an apocalyptic number.

97191 is a deficient number, since it is larger than the sum of its proper divisors (43209).

97191 is a wasteful number, since it uses less digits than its factorization.

97191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10805 (or 10802 counting only the distinct ones).

The product of its digits is 567, while the sum is 27.

The square root of 97191 is about 311.7547112715. The cubic root of 97191 is about 45.9771468083.

The spelling of 97191 in words is "ninety-seven thousand, one hundred ninety-one".