841457 has 2 divisors, whose sum is σ = 841458. Its totient is φ = 841456.

The previous prime is 841447. The next prime is 841459. The reversal of 841457 is 754148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 839056 + 2401 = 916^2 + 49^2 .

It is a cyclic number.

It is not a de Polignac number, because 841457 - 2¹⁴ = 825073 is a prime.

Together with 841459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (841459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420728 + 420729.

It is an arithmetic number, because the mean of its divisors is an integer number (420729).

2⁸⁴¹⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

841457 is a deficient number, since it is larger than the sum of its proper divisors (1).

841457 is an equidigital number, since it uses as much as digits as its factorization.

841457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4480, while the sum is 29.

The square root of 841457 is about 917.3096532796. The cubic root of 841457 is about 94.4084011124.

The spelling of 841457 in words is "eight hundred forty-one thousand, four hundred fifty-seven".