97535897 has 6 divisors (see below), whose sum is σ = 98106138. Its totient is φ = 96967184.

The previous prime is 97535863. The next prime is 97535899. The reversal of 97535897 is 79853579.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 70744921 + 26790976 = 8411^2 + 5176^2 .

It is not a de Polignac number, because 97535897 - 2¹² = 97531801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97535899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150428 + ... + 151074.

It is an arithmetic number, because the mean of its divisors is an integer number (16351023).

Almost surely, 2^97535897 is an apocalyptic number.

It is an amenable number.

97535897 is a deficient number, since it is larger than the sum of its proper divisors (570241).

97535897 is an frugal number, since it uses more digits than its factorization.

97535897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527 (or 880 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 53.

The square root of 97535897 is about 9876.0263770405. The cubic root of 97535897 is about 460.3146822848.

The spelling of 97535897 in words is "ninety-seven million, five hundred thirty-five thousand, eight hundred ninety-seven".