705666028 has 12 divisors (see below), whose sum is σ = 1235144232. Its totient is φ = 352767680.

The previous prime is 705666011. The next prime is 705666053. The reversal of 705666028 is 820666507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14388 + ... + 40228.

It is an arithmetic number, because the mean of its divisors is an integer number (102928686).

Almost surely, 2^705666028 is an apocalyptic number.

It is an amenable number.

705666028 is a deficient number, since it is larger than the sum of its proper divisors (529478204).

705666028 is a wasteful number, since it uses less digits than its factorization.

705666028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32672 (or 32670 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 705666028 is about 26564.3751667529. The cubic root of 705666028 is about 890.2932282964.

The spelling of 705666028 in words is "seven hundred five million, six hundred sixty-six thousand, twenty-eight".