9997600143 has 8 divisors (see below), whose sum is σ = 13330666800. Its totient is φ = 6664800128.

The previous prime is 9997600127. The next prime is 9997600163. The reversal of 9997600143 is 3410067999.

It is a Cunningham number, because it is equal to 99988²-1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9997600143 - 2⁴ = 9997600127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9997600092 and 9997600101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9997600103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49993 + ... + 149981.

It is an arithmetic number, because the mean of its divisors is an integer number (1666333350).

Almost surely, 2^9997600143 is an apocalyptic number.

9997600143 is a deficient number, since it is larger than the sum of its proper divisors (3333066657).

9997600143 is a wasteful number, since it uses less digits than its factorization.

9997600143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133321.

The product of its (nonzero) digits is 367416, while the sum is 48.

The square root of 9997600143 is about 99987.9999949994. Note that the first 5 decimals coincide. The cubic root of 9997600143 is about 2154.2623317376.

The spelling of 9997600143 in words is "nine billion, nine hundred ninety-seven million, six hundred thousand, one hundred forty-three".