923428 has 24 divisors (see below), whose sum is σ = 1822464. Its totient is φ = 405600.

The previous prime is 923411. The next prime is 923437. The reversal of 923428 is 824329.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 923396 and 923405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1026 + ... + 1702.

It is an arithmetic number, because the mean of its divisors is an integer number (75936).

2⁹²³⁴²⁸ is an apocalyptic number.

It is an amenable number.

923428 is a deficient number, since it is larger than the sum of its proper divisors (899036).

923428 is a wasteful number, since it uses less digits than its factorization.

923428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 721 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 923428 is about 960.9516116850. The cubic root of 923428 is about 97.3795312480.

Subtracting from 923428 its reverse (824329), we obtain a palindrome (99099).

The spelling of 923428 in words is "nine hundred twenty-three thousand, four hundred twenty-eight".