97271775 has 36 divisors (see below), whose sum is σ = 176707440. Its totient is φ = 51139200.

The previous prime is 97271747. The next prime is 97271777. The reversal of 97271775 is 57717279.

It is not a de Polignac number, because 97271775 - 2¹⁰ = 97270751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 97271775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97271777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12931 + ... + 19019.

It is an arithmetic number, because the mean of its divisors is an integer number (4908540).

Almost surely, 2^97271775 is an apocalyptic number.

97271775 is a deficient number, since it is larger than the sum of its proper divisors (79435665).

97271775 is a wasteful number, since it uses less digits than its factorization.

97271775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6176 (or 6168 counting only the distinct ones).

The product of its digits is 216090, while the sum is 45.

The square root of 97271775 is about 9862.6454361900. The cubic root of 97271775 is about 459.8988041415.

The spelling of 97271775 in words is "ninety-seven million, two hundred seventy-one thousand, seven hundred seventy-five".