428601 has 4 divisors (see below), whose sum is σ = 571472. Its totient is φ = 285732.

The previous prime is 428579. The next prime is 428629. The reversal of 428601 is 106824.

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 not a de Polignac number, because 428601 - 2⁵ = 428569 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (428671) 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, 71431 + ... + 71436.

It is an arithmetic number, because the mean of its divisors is an integer number (142868).

2⁴²⁸⁶⁰¹ is an apocalyptic number.

It is an amenable number.

428601 is a deficient number, since it is larger than the sum of its proper divisors (142871).

428601 is a wasteful number, since it uses less digits than its factorization.

428601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142870.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 428601 is about 654.6762558700. The cubic root of 428601 is about 75.3964781521.

The spelling of 428601 in words is "four hundred twenty-eight thousand, six hundred one".