923385913 has 4 divisors (see below), whose sum is σ = 944860048. Its totient is φ = 901911780.

The previous prime is 923385907. The next prime is 923385977. The reversal of 923385913 is 319583329.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 923385913 - 2⁹ = 923385401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 21474091 = 923385913 / (9 + 2 + 3 + 3 + 8 + 5 + 9 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 923385913.

It is not an unprimeable number, because it can be changed into a prime (923385613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10737003 + ... + 10737088.

It is an arithmetic number, because the mean of its divisors is an integer number (236215012).

Almost surely, 2^923385913 is an apocalyptic number.

It is an amenable number.

923385913 is a deficient number, since it is larger than the sum of its proper divisors (21474135).

923385913 is a wasteful number, since it uses less digits than its factorization.

923385913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21474134.

The product of its digits is 174960, while the sum is 43.

The square root of 923385913 is about 30387.2656387507. The cubic root of 923385913 is about 973.7805180592.

The spelling of 923385913 in words is "nine hundred twenty-three million, three hundred eighty-five thousand, nine hundred thirteen".