168863705 has 16 divisors (see below), whose sum is σ = 206303760. Its totient is φ = 132667392.

The previous prime is 168863699. The next prime is 168863729. The reversal of 168863705 is 507368861.

It can be written as a sum of positive squares in 8 ways, for example, as 175561 + 168688144 = 419^2 + 12988^2 .

It is a cyclic number.

It is not a de Polignac number, because 168863705 - 2⁶ = 168863641 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68657 + ... + 71073.

It is an arithmetic number, because the mean of its divisors is an integer number (12893985).

Almost surely, 2^168863705 is an apocalyptic number.

It is an amenable number.

168863705 is a deficient number, since it is larger than the sum of its proper divisors (37440055).

168863705 is a wasteful number, since it uses less digits than its factorization.

168863705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 168863705 is about 12994.7568272746. The cubic root of 168863705 is about 552.7288133153.

The spelling of 168863705 in words is "one hundred sixty-eight million, eight hundred sixty-three thousand, seven hundred five".