457813 has 2 divisors, whose sum is σ = 457814. Its totient is φ = 457812.

The previous prime is 457799. The next prime is 457817. The reversal of 457813 is 318754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 418609 + 39204 = 647^2 + 198^2 .

It is a cyclic number.

It is not a de Polignac number, because 457813 - 2¹³ = 449621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228906 + 228907.

It is an arithmetic number, because the mean of its divisors is an integer number (228907).

2⁴⁵⁷⁸¹³ is an apocalyptic number.

It is an amenable number.

457813 is a deficient number, since it is larger than the sum of its proper divisors (1).

457813 is an equidigital number, since it uses as much as digits as its factorization.

457813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 457813 is about 676.6187996206. The cubic root of 457813 is about 77.0718955190.

The spelling of 457813 in words is "four hundred fifty-seven thousand, eight hundred thirteen".