612906108 has 12 divisors (see below), whose sum is σ = 1430114280. Its totient is φ = 204302032.

The previous prime is 612906061. The next prime is 612906109. The reversal of 612906108 is 801609216.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612906109) 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, 25537743 + ... + 25537766.

It is an arithmetic number, because the mean of its divisors is an integer number (119176190).

Almost surely, 2^612906108 is an apocalyptic number.

It is an amenable number.

612906108 is an abundant number, since it is smaller than the sum of its proper divisors (817208172).

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

612906108 is a wasteful number, since it uses less digits than its factorization.

612906108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51075516 (or 51075514 counting only the distinct ones).

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

The square root of 612906108 is about 24756.9406025866. The cubic root of 612906108 is about 849.4372782958.

The spelling of 612906108 in words is "six hundred twelve million, nine hundred six thousand, one hundred eight".