9797799527 has 4 divisors (see below), whose sum is σ = 9809206440. Its totient is φ = 9786392616.

The previous prime is 9797799523. The next prime is 9797799551. The reversal of 9797799527 is 7259977979.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9797799527 - 2² = 9797799523 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 (9797799523) 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, 5702168 + ... + 5703885.

It is an arithmetic number, because the mean of its divisors is an integer number (2452301610).

Almost surely, 2^9797799527 is an apocalyptic number.

9797799527 is a deficient number, since it is larger than the sum of its proper divisors (11406913).

9797799527 is a wasteful number, since it uses less digits than its factorization.

9797799527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11406912.

The product of its digits is 157529610, while the sum is 71.

The square root of 9797799527 is about 98983.8346751630. The cubic root of 9797799527 is about 2139.8147805311.

The spelling of 9797799527 in words is "nine billion, seven hundred ninety-seven million, seven hundred ninety-nine thousand, five hundred twenty-seven".