457857811 has 2 divisors, whose sum is σ = 457857812. Its totient is φ = 457857810.

The previous prime is 457857773. The next prime is 457857847. The reversal of 457857811 is 118758754.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 457857811 - 2¹⁹ = 457333523 is a prime.

It is not a weakly prime, because it can be changed into another prime (457857511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228928905 + 228928906.

It is an arithmetic number, because the mean of its divisors is an integer number (228928906).

Almost surely, 2^457857811 is an apocalyptic number.

457857811 is a deficient number, since it is larger than the sum of its proper divisors (1).

457857811 is an equidigital number, since it uses as much as digits as its factorization.

457857811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 313600, while the sum is 46.

The square root of 457857811 is about 21397.6122733355. The cubic root of 457857811 is about 770.7441005084.

The spelling of 457857811 in words is "four hundred fifty-seven million, eight hundred fifty-seven thousand, eight hundred eleven".