825047 has 2 divisors, whose sum is σ = 825048. Its totient is φ = 825046.

The previous prime is 825029. The next prime is 825049. The reversal of 825047 is 740528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 825047 - 2⁶ = 824983 is a prime.

Together with 825049, 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 (825049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412523 + 412524.

It is an arithmetic number, because the mean of its divisors is an integer number (412524).

2⁸²⁵⁰⁴⁷ is an apocalyptic number.

825047 is a deficient number, since it is larger than the sum of its proper divisors (1).

825047 is an equidigital number, since it uses as much as digits as its factorization.

825047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 825047 is about 908.3209785092. The cubic root of 825047 is about 93.7906537757.

The spelling of 825047 in words is "eight hundred twenty-five thousand, forty-seven".