825444827 has 2 divisors, whose sum is σ = 825444828. Its totient is φ = 825444826.

The previous prime is 825444817. The next prime is 825444833. The reversal of 825444827 is 728444528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 825444827 - 2²⁸ = 557009371 is a prime.

It is equal to p_42386669 and since 825444827 and 42386669 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (825444817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412722413 + 412722414.

It is an arithmetic number, because the mean of its divisors is an integer number (412722414).

Almost surely, 2^825444827 is an apocalyptic number.

825444827 is a deficient number, since it is larger than the sum of its proper divisors (1).

825444827 is an equidigital number, since it uses as much as digits as its factorization.

825444827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 573440, while the sum is 44.

The square root of 825444827 is about 28730.5556333323. Note that the first 3 decimals coincide. The cubic root of 825444827 is about 938.0572623377.

The spelling of 825444827 in words is "eight hundred twenty-five million, four hundred forty-four thousand, eight hundred twenty-seven".