825947 has 2 divisors, whose sum is σ = 825948. Its totient is φ = 825946.

The previous prime is 825919. The next prime is 825959. The reversal of 825947 is 749528.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 825947 - 2⁶ = 825883 is a prime.

It is not a weakly prime, because it can be changed into another prime (825997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412973 + 412974.

It is an arithmetic number, because the mean of its divisors is an integer number (412974).

2⁸²⁵⁹⁴⁷ is an apocalyptic number.

825947 is a deficient number, since it is larger than the sum of its proper divisors (1).

825947 is an equidigital number, since it uses as much as digits as its factorization.

825947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 35.

The square root of 825947 is about 908.8162630587. The cubic root of 825947 is about 93.8247451320.

The spelling of 825947 in words is "eight hundred twenty-five thousand, nine hundred forty-seven".