9945437323 has 4 divisors (see below), whose sum is σ = 9945675208. Its totient is φ = 9945199440.

The previous prime is 9945437309. The next prime is 9945437389. The reversal of 9945437323 is 3237345499.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9945437323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9945437123) 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, 37761 + ... + 146002.

It is an arithmetic number, because the mean of its divisors is an integer number (2486418802).

Almost surely, 2^9945437323 is an apocalyptic number.

9945437323 is a deficient number, since it is larger than the sum of its proper divisors (237885).

9945437323 is a wasteful number, since it uses less digits than its factorization.

9945437323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237884.

The product of its digits is 2449440, while the sum is 49.

The square root of 9945437323 is about 99726.8134605734. The cubic root of 9945437323 is about 2150.5091509504.

The spelling of 9945437323 in words is "nine billion, nine hundred forty-five million, four hundred thirty-seven thousand, three hundred twenty-three".