923643 has 28 divisors (see below), whose sum is σ = 1591408. Its totient is φ = 524880.

The previous prime is 923641. The next prime is 923653. The reversal of 923643 is 346329.

It is not a de Polignac number, because 923643 - 2¹ = 923641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 923643.

It is not an unprimeable number, because it can be changed into a prime (923641) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 5013 + ... + 5193.

It is an arithmetic number, because the mean of its divisors is an integer number (56836).

2⁹²³⁶⁴³ is an apocalyptic number.

923643 is a deficient number, since it is larger than the sum of its proper divisors (667765).

923643 is an equidigital number, since it uses as much as digits as its factorization.

923643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 191 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 923643 is about 961.0634734501. The cubic root of 923643 is about 97.3870882257.

The spelling of 923643 in words is "nine hundred twenty-three thousand, six hundred forty-three".