830447 has 2 divisors, whose sum is σ = 830448. Its totient is φ = 830446.

The previous prime is 830441. The next prime is 830449. The reversal of 830447 is 744038.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 830447 - 2⁶ = 830383 is a prime.

Together with 830449, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (830441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415223 + 415224.

It is an arithmetic number, because the mean of its divisors is an integer number (415224).

2⁸³⁰⁴⁴⁷ is an apocalyptic number.

830447 is a deficient number, since it is larger than the sum of its proper divisors (1).

830447 is an equidigital number, since it uses as much as digits as its factorization.

830447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 830447 is about 911.2886480144. The cubic root of 830447 is about 93.9948314647.

The spelling of 830447 in words is "eight hundred thirty thousand, four hundred forty-seven".