97543385 has 12 divisors (see below), whose sum is σ = 121232748. Its totient is φ = 75340608.

The previous prime is 97543367. The next prime is 97543409. The reversal of 97543385 is 58334579.

It can be written as a sum of positive squares in 6 ways, for example, as 13344409 + 84198976 = 3653^2 + 9176^2 .

It is not a de Polignac number, because 97543385 - 2¹⁸ = 97281241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 7394 + ... + 15803.

It is an arithmetic number, because the mean of its divisors is an integer number (10102729).

Almost surely, 2^97543385 is an apocalyptic number.

It is an amenable number.

97543385 is a deficient number, since it is larger than the sum of its proper divisors (23689363).

97543385 is a wasteful number, since it uses less digits than its factorization.

97543385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23260 (or 23231 counting only the distinct ones).

The product of its digits is 453600, while the sum is 44.

The square root of 97543385 is about 9876.4054696028. The cubic root of 97543385 is about 460.3264617023.

The spelling of 97543385 in words is "ninety-seven million, five hundred forty-three thousand, three hundred eighty-five".