923730945 has 64 divisors (see below), whose sum is σ = 1602146304. Its totient is φ = 453277440.

The previous prime is 923730931. The next prime is 923730947. The reversal of 923730945 is 549037329.

It is not a de Polignac number, because 923730945 - 2¹² = 923726849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 923730897 and 923730906.

It is not an unprimeable number, because it can be changed into a prime (923730947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1052847 + ... + 1053723.

It is an arithmetic number, because the mean of its divisors is an integer number (25033536).

Almost surely, 2^923730945 is an apocalyptic number.

It is an amenable number.

923730945 is a deficient number, since it is larger than the sum of its proper divisors (678415359).

923730945 is a wasteful number, since it uses less digits than its factorization.

923730945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022.

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 923730945 is about 30392.9423550929. The cubic root of 923730945 is about 973.9017904314.

The spelling of 923730945 in words is "nine hundred twenty-three million, seven hundred thirty thousand, nine hundred forty-five".