912009212 has 12 divisors (see below), whose sum is σ = 1647500736. Its totient is φ = 441294720.

The previous prime is 912009209. The next prime is 912009223. The reversal of 912009212 is 212900219.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3677333 + ... + 3677580.

It is an arithmetic number, because the mean of its divisors is an integer number (137291728).

Almost surely, 2^912009212 is an apocalyptic number.

It is an amenable number.

912009212 is a deficient number, since it is larger than the sum of its proper divisors (735491524).

912009212 is a wasteful number, since it uses less digits than its factorization.

912009212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7354948 (or 7354946 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 912009212 is about 30199.4902605988. The cubic root of 912009212 is about 969.7647823043.

The spelling of 912009212 in words is "nine hundred twelve million, nine thousand, two hundred twelve".