428237 has 8 divisors (see below), whose sum is σ = 458304. Its totient is φ = 399168.

The previous prime is 428231. The next prime is 428249. The reversal of 428237 is 732824.

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 428237 - 2⁴ = 428221 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 428237.

It is not an unprimeable number, because it can be changed into a prime (428231) 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, 773 + ... + 1205.

It is an arithmetic number, because the mean of its divisors is an integer number (57288).

2⁴²⁸²³⁷ is an apocalyptic number.

It is an amenable number.

428237 is a deficient number, since it is larger than the sum of its proper divisors (30067).

428237 is a wasteful number, since it uses less digits than its factorization.

428237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499.

The product of its digits is 2688, while the sum is 26.

The square root of 428237 is about 654.3981968190. The cubic root of 428237 is about 75.3751279990.

The spelling of 428237 in words is "four hundred twenty-eight thousand, two hundred thirty-seven".