812017030 has 32 divisors (see below), whose sum is σ = 1596879360. Its totient is φ = 294839520.

The previous prime is 812017027. The next prime is 812017049. The reversal of 812017030 is 30710218.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 812016992 and 812017010.

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 15 ways as a sum of consecutive naturals, for example, 73957 + ... + 84223.

It is an arithmetic number, because the mean of its divisors is an integer number (49902480).

Almost surely, 2^812017030 is an apocalyptic number.

812017030 is a deficient number, since it is larger than the sum of its proper divisors (784862330).

812017030 is a wasteful number, since it uses less digits than its factorization.

812017030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11004.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 812017030 is about 28495.9125139028. The cubic root of 812017030 is about 932.9428611818.

Adding to 812017030 its reverse (30710218), we get a palindrome (842727248).

The spelling of 812017030 in words is "eight hundred twelve million, seventeen thousand, thirty".