822425812 has 24 divisors (see below), whose sum is σ = 1617348096. Its totient is φ = 363077088.

The previous prime is 822425801. The next prime is 822425833. The reversal of 822425812 is 218524228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342628 + ... + 345019.

It is an arithmetic number, because the mean of its divisors is an integer number (67389504).

Almost surely, 2^822425812 is an apocalyptic number.

It is an amenable number.

822425812 is a deficient number, since it is larger than the sum of its proper divisors (794922284).

822425812 is a wasteful number, since it uses less digits than its factorization.

822425812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687687 (or 687685 counting only the distinct ones).

The product of its digits is 20480, while the sum is 34.

The square root of 822425812 is about 28677.9673617221. The cubic root of 822425812 is about 936.9122358340.

The spelling of 822425812 in words is "eight hundred twenty-two million, four hundred twenty-five thousand, eight hundred twelve".