97965545 has 4 divisors (see below), whose sum is σ = 117558660. Its totient is φ = 78372432.

The previous prime is 97965521. The next prime is 97965583. The reversal of 97965545 is 54556979.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54556979 = 83 ⋅657313.

It can be written as a sum of positive squares in 2 ways, for example, as 24880144 + 73085401 = 4988^2 + 8549^2 .

It is a cyclic number.

It is not a de Polignac number, because 97965545 - 2²⁴ = 81188329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97965493 and 97965502.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9796550 + ... + 9796559.

It is an arithmetic number, because the mean of its divisors is an integer number (29389665).

Almost surely, 2^97965545 is an apocalyptic number.

It is an amenable number.

97965545 is a deficient number, since it is larger than the sum of its proper divisors (19593115).

97965545 is a wasteful number, since it uses less digits than its factorization.

97965545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19593114.

The product of its digits is 1701000, while the sum is 50.

The square root of 97965545 is about 9897.7545433295. The cubic root of 97965545 is about 460.9895913818.

The spelling of 97965545 in words is "ninety-seven million, nine hundred sixty-five thousand, five hundred forty-five".