825479793 has 6 divisors (see below), whose sum is σ = 1192359714. Its totient is φ = 550319856.

The previous prime is 825479791. The next prime is 825479819. The reversal of 825479793 is 397974528.

825479793 is a `hidden beast` number, since 8 + 2 + 547 + 9 + 7 + 93 = 666.

825479793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 496710369 + 328769424 = 22287^2 + 18132^2 .

It is not a de Polignac number, because 825479793 - 2¹ = 825479791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (825479791) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45859980 + ... + 45859997.

It is an arithmetic number, because the mean of its divisors is an integer number (198726619).

Almost surely, 2^825479793 is an apocalyptic number.

It is an amenable number.

825479793 is a deficient number, since it is larger than the sum of its proper divisors (366879921).

825479793 is a wasteful number, since it uses less digits than its factorization.

825479793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91719983 (or 91719980 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 825479793 is about 28731.1641427910. The cubic root of 825479793 is about 938.0705075788.

The spelling of 825479793 in words is "eight hundred twenty-five million, four hundred seventy-nine thousand, seven hundred ninety-three".