428367 has 4 divisors (see below), whose sum is σ = 571160. Its totient is φ = 285576.

The previous prime is 428353. The next prime is 428369. The reversal of 428367 is 763824.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 428367 - 2⁶ = 428303 is a prime.

It is a D-number.

It is a Duffinian number.

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 428367.

It is not an unprimeable number, because it can be changed into a prime (428369) 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, 71392 + ... + 71397.

It is an arithmetic number, because the mean of its divisors is an integer number (142790).

2⁴²⁸³⁶⁷ is an apocalyptic number.

428367 is a deficient number, since it is larger than the sum of its proper divisors (142793).

428367 is a wasteful number, since it uses less digits than its factorization.

428367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142792.

The product of its digits is 8064, while the sum is 30.

The square root of 428367 is about 654.4975171840. The cubic root of 428367 is about 75.3827544420.

The spelling of 428367 in words is "four hundred twenty-eight thousand, three hundred sixty-seven".