428927 has 8 divisors (see below), whose sum is σ = 474336. Its totient is φ = 385792.

The previous prime is 428899. The next prime is 428951. The reversal of 428927 is 729824.

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 428927 - 2⁶ = 428863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428893 and 428902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158 + ... + 939.

It is an arithmetic number, because the mean of its divisors is an integer number (59292).

2⁴²⁸⁹²⁷ is an apocalyptic number.

428927 is a deficient number, since it is larger than the sum of its proper divisors (45409).

428927 is a wasteful number, since it uses less digits than its factorization.

428927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137.

The product of its digits is 8064, while the sum is 32.

The square root of 428927 is about 654.9251865671. The cubic root of 428927 is about 75.4155891845.

The spelling of 428927 in words is "four hundred twenty-eight thousand, nine hundred twenty-seven".