705558668 has 12 divisors (see below), whose sum is σ = 1264843272. Its totient is φ = 344174880.

The previous prime is 705558617. The next prime is 705558677. The reversal of 705558668 is 866855507.

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, 2150930 + ... + 2151257.

It is an arithmetic number, because the mean of its divisors is an integer number (105403606).

Almost surely, 2^705558668 is an apocalyptic number.

It is an amenable number.

705558668 is a deficient number, since it is larger than the sum of its proper divisors (559284604).

705558668 is a wasteful number, since it uses less digits than its factorization.

705558668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4302232 (or 4302230 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 50.

The square root of 705558668 is about 26562.3543384241. The cubic root of 705558668 is about 890.2480762816.

The spelling of 705558668 in words is "seven hundred five million, five hundred fifty-eight thousand, six hundred sixty-eight".