822431825 has 12 divisors (see below), whose sum is σ = 1029719808. Its totient is φ = 651555600.

The previous prime is 822431821. The next prime is 822431849. The reversal of 822431825 is 528134228.

It is not a de Polignac number, because 822431825 - 2² = 822431821 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (822431821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157121 + ... + 162270.

It is an arithmetic number, because the mean of its divisors is an integer number (85809984).

Almost surely, 2^822431825 is an apocalyptic number.

It is an amenable number.

822431825 is a deficient number, since it is larger than the sum of its proper divisors (207287983).

822431825 is a wasteful number, since it uses less digits than its factorization.

822431825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319504 (or 319499 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 822431825 is about 28678.0721981098. The cubic root of 822431825 is about 936.9145191765.

The spelling of 822431825 in words is "eight hundred twenty-two million, four hundred thirty-one thousand, eight hundred twenty-five".