428267 has 8 divisors (see below), whose sum is σ = 493536. Its totient is φ = 364032.

The previous prime is 428251. The next prime is 428273. The reversal of 428267 is 762824.

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 428267 - 2⁴ = 428251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428227) 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, 1193 + ... + 1509.

It is an arithmetic number, because the mean of its divisors is an integer number (61692).

2⁴²⁸²⁶⁷ is an apocalyptic number.

428267 is a deficient number, since it is larger than the sum of its proper divisors (65269).

428267 is a wasteful number, since it uses less digits than its factorization.

428267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517.

The product of its digits is 5376, while the sum is 29.

The square root of 428267 is about 654.4211182412. The cubic root of 428267 is about 75.3768880844.

The spelling of 428267 in words is "four hundred twenty-eight thousand, two hundred sixty-seven".