912804009 has 16 divisors (see below), whose sum is σ = 1311237312. Its totient is φ = 561492288.

The previous prime is 912803993. The next prime is 912804049. The reversal of 912804009 is 900408219.

It is not a de Polignac number, because 912804009 - 2⁴ = 912803993 is a prime.

It is a super-2 number, since 2×912804009² = 1666422317692944162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (912804049) by changing a digit.

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, 168822 + ... + 174144.

It is an arithmetic number, because the mean of its divisors is an integer number (81952332).

Almost surely, 2^912804009 is an apocalyptic number.

It is an amenable number.

912804009 is a deficient number, since it is larger than the sum of its proper divisors (398433303).

912804009 is a wasteful number, since it uses less digits than its factorization.

912804009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9736.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 912804009 is about 30212.6465077126. The cubic root of 912804009 is about 970.0464104340.

The spelling of 912804009 in words is "nine hundred twelve million, eight hundred four thousand, nine".