814447 has 2 divisors, whose sum is σ = 814448. Its totient is φ = 814446.

The previous prime is 814423. The next prime is 814469. The reversal of 814447 is 744418.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-814447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (814477) 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, 407223 + 407224.

It is an arithmetic number, because the mean of its divisors is an integer number (407224).

2⁸¹⁴⁴⁴⁷ is an apocalyptic number.

814447 is a deficient number, since it is larger than the sum of its proper divisors (1).

814447 is an equidigital number, since it uses as much as digits as its factorization.

814447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3584, while the sum is 28.

The square root of 814447 is about 902.4671739183. The cubic root of 814447 is about 93.3872548396.

The spelling of 814447 in words is "eight hundred fourteen thousand, four hundred forty-seven".