825407843 has 16 divisors (see below), whose sum is σ = 913006080. Its totient is φ = 741439776.

The previous prime is 825407839. The next prime is 825407857. The reversal of 825407843 is 348704528.

825407843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 825407843 - 2² = 825407839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 825407843.

It is not an unprimeable number, because it can be changed into a prime (825407893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105596 + ... + 113142.

It is an arithmetic number, because the mean of its divisors is an integer number (57062880).

Almost surely, 2^825407843 is an apocalyptic number.

825407843 is a deficient number, since it is larger than the sum of its proper divisors (87598237).

825407843 is a wasteful number, since it uses less digits than its factorization.

825407843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7786.

The product of its (nonzero) digits is 215040, while the sum is 41.

The square root of 825407843 is about 28729.9119908154. The cubic root of 825407843 is about 938.0432522643.

The spelling of 825407843 in words is "eight hundred twenty-five million, four hundred seven thousand, eight hundred forty-three".