928428 has 12 divisors (see below), whose sum is σ = 2166360. Its totient is φ = 309472.

The previous prime is 928427. The next prime is 928429. The reversal of 928428 is 824829.

928428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (928427) and next prime (928429).

It is a tau number, because it is divible by the number of its divisors (12).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 928428.

It is not an unprimeable number, because it can be changed into a prime (928423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38673 + ... + 38696.

It is an arithmetic number, because the mean of its divisors is an integer number (180530).

2⁹²⁸⁴²⁸ is an apocalyptic number.

It is an amenable number.

928428 is an abundant number, since it is smaller than the sum of its proper divisors (1237932).

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

928428 is a wasteful number, since it uses less digits than its factorization.

928428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77376 (or 77374 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 928428 is about 963.5496873540. The cubic root of 928428 is about 97.5549722871.

It can be divided in two parts, 9284 and 28, that multiplied together give a palindrome (259952).

The spelling of 928428 in words is "nine hundred twenty-eight thousand, four hundred twenty-eight".