457316393 has 2 divisors, whose sum is σ = 457316394. Its totient is φ = 457316392.

The previous prime is 457316359. The next prime is 457316407. The reversal of 457316393 is 393613754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 451690009 + 5626384 = 21253^2 + 2372^2 .

It is a cyclic number.

It is not a de Polignac number, because 457316393 - 2¹⁴ = 457300009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 457316393.

It is not a weakly prime, because it can be changed into another prime (457316333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228658196 + 228658197.

It is an arithmetic number, because the mean of its divisors is an integer number (228658197).

Almost surely, 2^457316393 is an apocalyptic number.

It is an amenable number.

457316393 is a deficient number, since it is larger than the sum of its proper divisors (1).

457316393 is an equidigital number, since it uses as much as digits as its factorization.

457316393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 41.

The square root of 457316393 is about 21384.9571661951. The cubic root of 457316393 is about 770.4401784089.

The spelling of 457316393 in words is "four hundred fifty-seven million, three hundred sixteen thousand, three hundred ninety-three".