825604879 has 8 divisors (see below), whose sum is σ = 902545920. Its totient is φ = 748978200.

The previous prime is 825604873. The next prime is 825604909. The reversal of 825604879 is 978406528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 825604879 - 2¹⁹ = 825080591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825604873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73077 + ... + 83614.

It is an arithmetic number, because the mean of its divisors is an integer number (112818240).

Almost surely, 2^825604879 is an apocalyptic number.

825604879 is a deficient number, since it is larger than the sum of its proper divisors (76941041).

825604879 is a wasteful number, since it uses less digits than its factorization.

825604879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157181.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 825604879 is about 28733.3408952040. The cubic root of 825604879 is about 938.1178875236.

The spelling of 825604879 in words is "eight hundred twenty-five million, six hundred four thousand, eight hundred seventy-nine".