428311 has 8 divisors (see below), whose sum is σ = 471744. Its totient is φ = 386400.

The previous prime is 428303. The next prime is 428339. The reversal of 428311 is 113824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428311 - 2³ = 428303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261 + ... + 961.

It is an arithmetic number, because the mean of its divisors is an integer number (58968).

2⁴²⁸³¹¹ is an apocalyptic number.

428311 is a deficient number, since it is larger than the sum of its proper divisors (43433).

428311 is a wasteful number, since it uses less digits than its factorization.

428311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761.

The product of its digits is 192, while the sum is 19.

The square root of 428311 is about 654.4547348748. The cubic root of 428311 is about 75.3794693942.

The spelling of 428311 in words is "four hundred twenty-eight thousand, three hundred eleven".