97289719569 has 45 divisors (see below), whose sum is σ = 169096183641. Its totient is φ = 55582896600.

The previous prime is 97289719559. The next prime is 97289719601. The reversal of 97289719569 is 96591798279.

The square root of 97289719569 is 311913.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 97289719569 - 2¹¹ = 97289717521 is a prime.

It is a super-2 number, since 2×97289719569² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97289719497 and 97289719506.

It is not an unprimeable number, because it can be changed into a prime (97289719529) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 19648044 + ... + 19652994.

Almost surely, 2^97289719569 is an apocalyptic number.

97289719569 is the 311913-rd square number.

97289719569 is the 155957-th centered octagonal number.

It is an amenable number.

97289719569 is a deficient number, since it is larger than the sum of its proper divisors (71806464072).

97289719569 is an frugal number, since it uses more digits than its factorization.

97289719569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9928 (or 4961 counting only the distinct ones).

The product of its digits is 154314720, while the sum is 72.

The spelling of 97289719569 in words is "ninety-seven billion, two hundred eighty-nine million, seven hundred nineteen thousand, five hundred sixty-nine".