427057 has 4 divisors (see below), whose sum is σ = 452196. Its totient is φ = 401920.

The previous prime is 427043. The next prime is 427067. The reversal of 427057 is 750724.

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

It can be written as a sum of positive squares in 2 ways, for example, as 266256 + 160801 = 516^2 + 401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12544 + ... + 12577.

It is an arithmetic number, because the mean of its divisors is an integer number (113049).

2⁴²⁷⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

427057 is a deficient number, since it is larger than the sum of its proper divisors (25139).

427057 is a wasteful number, since it uses less digits than its factorization.

427057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25138.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 427057 is about 653.4959831552. The cubic root of 427057 is about 75.3058326714.

The spelling of 427057 in words is "four hundred twenty-seven thousand, fifty-seven".