457849 has 4 divisors (see below), whose sum is σ = 523264. Its totient is φ = 392436.

The previous prime is 457837. The next prime is 457871. The reversal of 457849 is 948754.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 457849 - 2⁵ = 457817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (457829) 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, 32697 + ... + 32710.

It is an arithmetic number, because the mean of its divisors is an integer number (130816).

2⁴⁵⁷⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

457849 is a deficient number, since it is larger than the sum of its proper divisors (65415).

457849 is an equidigital number, since it uses as much as digits as its factorization.

457849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65414.

The product of its digits is 40320, while the sum is 37.

The square root of 457849 is about 676.6454019647. The cubic root of 457849 is about 77.0739156419.

The spelling of 457849 in words is "four hundred fifty-seven thousand, eight hundred forty-nine".