457427 has 4 divisors (see below), whose sum is σ = 465240. Its totient is φ = 449616.

The previous prime is 457421. The next prime is 457433. The reversal of 457427 is 724754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724754 = 2 ⋅362377.

It is an interprime number because it is at equal distance from previous prime (457421) and next prime (457433).

It is a cyclic number.

It is not a de Polignac number, because 457427 - 2⁴ = 457411 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 457427.

It is not an unprimeable number, because it can be changed into a prime (457421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3818 + ... + 3935.

It is an arithmetic number, because the mean of its divisors is an integer number (116310).

2⁴⁵⁷⁴²⁷ is an apocalyptic number.

457427 is a deficient number, since it is larger than the sum of its proper divisors (7813).

457427 is an equidigital number, since it uses as much as digits as its factorization.

457427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7812.

The product of its digits is 7840, while the sum is 29.

The square root of 457427 is about 676.3334976179. Note that the first 3 decimals coincide. The cubic root of 457427 is about 77.0502286546.

The spelling of 457427 in words is "four hundred fifty-seven thousand, four hundred twenty-seven".