97172271 has 32 divisors (see below), whose sum is σ = 166801920. Its totient is φ = 54758592.

The previous prime is 97172269. The next prime is 97172347. The reversal of 97172271 is 17227179.

It is not a de Polignac number, because 97172271 - 2¹ = 97172269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97172671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10276 + ... + 17318.

It is an arithmetic number, because the mean of its divisors is an integer number (5212560).

Almost surely, 2^97172271 is an apocalyptic number.

97172271 is a deficient number, since it is larger than the sum of its proper divisors (69629649).

97172271 is a wasteful number, since it uses less digits than its factorization.

97172271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7132 (or 7126 counting only the distinct ones).

The product of its digits is 12348, while the sum is 36.

The square root of 97172271 is about 9857.5996571173. The cubic root of 97172271 is about 459.7419330674.

The spelling of 97172271 in words is "ninety-seven million, one hundred seventy-two thousand, two hundred seventy-one".