9997733423 has 4 divisors (see below), whose sum is σ = 10026055968. Its totient is φ = 9969410880.

The previous prime is 9997733393. The next prime is 9997733477. The reversal of 9997733423 is 3243377999.

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 9997733423 - 2¹⁸ = 9997471279 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 (9997733623) 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, 14160743 + ... + 14161448.

It is an arithmetic number, because the mean of its divisors is an integer number (2506513992).

Almost surely, 2^9997733423 is an apocalyptic number.

9997733423 is a deficient number, since it is larger than the sum of its proper divisors (28322545).

9997733423 is a wasteful number, since it uses less digits than its factorization.

9997733423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28322544.

The product of its digits is 7715736, while the sum is 56.

The square root of 9997733423 is about 99988.6664727558. Note that the first 3 decimals coincide. The cubic root of 9997733423 is about 2154.2719046619.

The spelling of 9997733423 in words is "nine billion, nine hundred ninety-seven million, seven hundred thirty-three thousand, four hundred twenty-three".