933428 has 6 divisors (see below), whose sum is σ = 1633506. Its totient is φ = 466712.

The previous prime is 933421. The next prime is 933433. The reversal of 933428 is 824339.

It can be written as a sum of positive squares in only one way, i.e., 487204 + 446224 = 698^2 + 668^2 .

It is an Ulam number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 933428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (933421) by changing a digit.

933428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 116675 + ... + 116682.

It is an arithmetic number, because the mean of its divisors is an integer number (272251).

2⁹³³⁴²⁸ is an apocalyptic number.

It is an amenable number.

933428 is a deficient number, since it is larger than the sum of its proper divisors (700078).

933428 is a wasteful number, since it uses less digits than its factorization.

933428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233361 (or 233359 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 933428 is about 966.1407764917. The cubic root of 933428 is about 97.7297845660.

The spelling of 933428 in words is "nine hundred thirty-three thousand, four hundred twenty-eight".