823012630 has 16 divisors (see below), whose sum is σ = 1616097744. Its totient is φ = 299277280.

The previous prime is 823012601. The next prime is 823012643. The reversal of 823012630 is 36210328.

It is a junction number, because it is equal to n+sod(n) for n = 823012595 and 823012604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3740857 + ... + 3741076.

It is an arithmetic number, because the mean of its divisors is an integer number (101006109).

Almost surely, 2^823012630 is an apocalyptic number.

823012630 is a deficient number, since it is larger than the sum of its proper divisors (793085114).

823012630 is a wasteful number, since it uses less digits than its factorization.

823012630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7481951.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 823012630 is about 28688.1967017796. The cubic root of 823012630 is about 937.1350183409.

Adding to 823012630 its reverse (36210328), we get a palindrome (859222958).

The spelling of 823012630 in words is "eight hundred twenty-three million, twelve thousand, six hundred thirty".