428593 has 8 divisors (see below), whose sum is σ = 478080. Its totient is φ = 380880.

The previous prime is 428579. The next prime is 428629. The reversal of 428593 is 395824.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428503) 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, 103 + ... + 931.

It is an arithmetic number, because the mean of its divisors is an integer number (59760).

2⁴²⁸⁵⁹³ is an apocalyptic number.

It is an amenable number.

428593 is a deficient number, since it is larger than the sum of its proper divisors (49487).

428593 is a wasteful number, since it uses less digits than its factorization.

428593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887.

The product of its digits is 8640, while the sum is 31.

The square root of 428593 is about 654.6701459514. The cubic root of 428593 is about 75.3960090480.

The spelling of 428593 in words is "four hundred twenty-eight thousand, five hundred ninety-three".