457857091 has 2 divisors, whose sum is σ = 457857092. Its totient is φ = 457857090.

The previous prime is 457857047. The next prime is 457857109. The reversal of 457857091 is 190758754.

It is a happy number.

Together with next prime (457857109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 457857091 - 2¹⁹ = 457332803 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (457857391) 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 as a sum of consecutive naturals, namely, 228928545 + 228928546.

It is an arithmetic number, because the mean of its divisors is an integer number (228928546).

Almost surely, 2^457857091 is an apocalyptic number.

457857091 is a deficient number, since it is larger than the sum of its proper divisors (1).

457857091 is an equidigital number, since it uses as much as digits as its factorization.

457857091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352800, while the sum is 46.

The square root of 457857091 is about 21397.5954490218. The cubic root of 457857091 is about 770.7436964994.

The spelling of 457857091 in words is "four hundred fifty-seven million, eight hundred fifty-seven thousand, ninety-one".