9997555343 has 4 divisors (see below), whose sum is σ = 10003547160. Its totient is φ = 9991563528.

The previous prime is 9997555339. The next prime is 9997555391. The reversal of 9997555343 is 3435557999.

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 9997555343 - 2² = 9997555339 is a prime.

It is a super-2 number, since 2×9997555343² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9997555303) 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 3 ways as a sum of consecutive naturals, for example, 2993405 + ... + 2996742.

It is an arithmetic number, because the mean of its divisors is an integer number (2500886790).

Almost surely, 2^9997555343 is an apocalyptic number.

9997555343 is a deficient number, since it is larger than the sum of its proper divisors (5991817).

9997555343 is a wasteful number, since it uses less digits than its factorization.

9997555343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5991816.

The product of its digits is 22963500, while the sum is 59.

The square root of 9997555343 is about 99987.7759678652. The cubic root of 9997555343 is about 2154.2591139288.

The spelling of 9997555343 in words is "nine billion, nine hundred ninety-seven million, five hundred fifty-five thousand, three hundred forty-three".