923543680 has 128 divisors (see below), whose sum is σ = 2322809280. Its totient is φ = 350687232.

The previous prime is 923543671. The next prime is 923543681. The reversal of 923543680 is 86345329.

923543680 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (923543681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1017787 + ... + 1018693.

Almost surely, 2^923543680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 923543680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1161404640).

923543680 is an abundant number, since it is smaller than the sum of its proper divisors (1399265600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

923543680 is a wasteful number, since it uses less digits than its factorization.

923543680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006 (or 994 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 923543680 is about 30389.8614672723. The cubic root of 923543680 is about 973.8359739923.

The spelling of 923543680 in words is "nine hundred twenty-three million, five hundred forty-three thousand, six hundred eighty".