428937 has 4 divisors (see below), whose sum is σ = 571920. Its totient is φ = 285956.

The previous prime is 428899. The next prime is 428951. The reversal of 428937 is 739824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 428937 - 2⁶ = 428873 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 428898 and 428907.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 428937.

It is not an unprimeable number, because it can be changed into a prime (428957) 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, 71487 + ... + 71492.

It is an arithmetic number, because the mean of its divisors is an integer number (142980).

2⁴²⁸⁹³⁷ is an apocalyptic number.

It is an amenable number.

428937 is a deficient number, since it is larger than the sum of its proper divisors (142983).

428937 is a wasteful number, since it uses less digits than its factorization.

428937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142982.

The product of its digits is 12096, while the sum is 33.

The square root of 428937 is about 654.9328209824. The cubic root of 428937 is about 75.4161752594.

The spelling of 428937 in words is "four hundred twenty-eight thousand, nine hundred thirty-seven".