97965845 has 4 divisors (see below), whose sum is σ = 117559020. Its totient is φ = 78372672.

The previous prime is 97965841. The next prime is 97965853. The reversal of 97965845 is 54856979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54856979 = 311 ⋅176389.

It can be written as a sum of positive squares in 2 ways, for example, as 76352644 + 21613201 = 8738^2 + 4649^2 .

It is a cyclic number.

It is not a de Polignac number, because 97965845 - 2² = 97965841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97965841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9796580 + ... + 9796589.

It is an arithmetic number, because the mean of its divisors is an integer number (29389755).

Almost surely, 2^97965845 is an apocalyptic number.

It is an amenable number.

97965845 is a deficient number, since it is larger than the sum of its proper divisors (19593175).

97965845 is a wasteful number, since it uses less digits than its factorization.

97965845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19593174.

The product of its digits is 2721600, while the sum is 53.

The square root of 97965845 is about 9897.7696982704. The cubic root of 97965845 is about 460.9900619443.

The spelling of 97965845 in words is "ninety-seven million, nine hundred sixty-five thousand, eight hundred forty-five".