97568861 has 4 divisors (see below), whose sum is σ = 105074172. Its totient is φ = 90063552.

The previous prime is 97568837. The next prime is 97568869. The reversal of 97568861 is 16886579.

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: 16886579 = 73 ⋅231323.

It can be written as a sum of positive squares in 2 ways, for example, as 49266361 + 48302500 = 7019^2 + 6950^2 .

It is a cyclic number.

It is not a de Polignac number, because 97568861 - 2¹⁰ = 97567837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97568869) 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 3 ways as a sum of consecutive naturals, for example, 3752636 + ... + 3752661.

It is an arithmetic number, because the mean of its divisors is an integer number (26268543).

Almost surely, 2^97568861 is an apocalyptic number.

It is an amenable number.

97568861 is a deficient number, since it is larger than the sum of its proper divisors (7505311).

97568861 is a wasteful number, since it uses less digits than its factorization.

97568861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7505310.

The product of its digits is 725760, while the sum is 50.

The square root of 97568861 is about 9877.6951258884. The cubic root of 97568861 is about 460.3665336358.

The spelling of 97568861 in words is "ninety-seven million, five hundred sixty-eight thousand, eight hundred sixty-one".