427285 has 8 divisors (see below), whose sum is σ = 518616. Its totient is φ = 337920.

The previous prime is 427283. The next prime is 427307. The reversal of 427285 is 582724.

It can be written as a sum of positive squares in 4 ways, for example, as 6084 + 421201 = 78^2 + 649^2 .

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

It is not a de Polignac number, because 427285 - 2¹ = 427283 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427283) 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, 45 + ... + 925.

It is an arithmetic number, because the mean of its divisors is an integer number (64827).

2⁴²⁷²⁸⁵ is an apocalyptic number.

It is an amenable number.

427285 is a deficient number, since it is larger than the sum of its proper divisors (91331).

427285 is an equidigital number, since it uses as much as digits as its factorization.

427285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983.

The product of its digits is 4480, while the sum is 28.

The square root of 427285 is about 653.6704062446. The cubic root of 427285 is about 75.3192318782.

The spelling of 427285 in words is "four hundred twenty-seven thousand, two hundred eighty-five".