612706308 has 12 divisors (see below), whose sum is σ = 1429648080. Its totient is φ = 204235432.

The previous prime is 612706279. The next prime is 612706309. The reversal of 612706308 is 803607216.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (612706309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25529418 + ... + 25529441.

It is an arithmetic number, because the mean of its divisors is an integer number (119137340).

Almost surely, 2^612706308 is an apocalyptic number.

It is an amenable number.

612706308 is an abundant number, since it is smaller than the sum of its proper divisors (816941772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612706308 is a wasteful number, since it uses less digits than its factorization.

612706308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51058866 (or 51058864 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 612706308 is about 24752.9050416310. The cubic root of 612706308 is about 849.3449661611.

The spelling of 612706308 in words is "six hundred twelve million, seven hundred six thousand, three hundred eight".