612704668 has 12 divisors (see below), whose sum is σ = 1072762992. Its totient is φ = 306200960.

The previous prime is 612704639. The next prime is 612704693. The reversal of 612704668 is 866407216.

It is a self number, because there is not a number n which added to its sum of digits gives 612704668.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28480 + ... + 45127.

It is an arithmetic number, because the mean of its divisors is an integer number (89396916).

Almost surely, 2^612704668 is an apocalyptic number.

It is an amenable number.

612704668 is a deficient number, since it is larger than the sum of its proper divisors (460058324).

612704668 is a wasteful number, since it uses less digits than its factorization.

612704668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75692 (or 75690 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 612704668 is about 24752.8719141840. The cubic root of 612704668 is about 849.3442083609.

The spelling of 612704668 in words is "six hundred twelve million, seven hundred four thousand, six hundred sixty-eight".