168868861 has 8 divisors (see below), whose sum is σ = 193182080. Its totient is φ = 144602928.

The previous prime is 168868823. The next prime is 168868891.

168868861 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168868861 - 2¹³ = 168860669 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168868799 and 168868808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168868891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3801 + ... + 18766.

It is an arithmetic number, because the mean of its divisors is an integer number (24147760).

Almost surely, 2^168868861 is an apocalyptic number.

It is an amenable number.

168868861 is a deficient number, since it is larger than the sum of its proper divisors (24313219).

168868861 is a wasteful number, since it uses less digits than its factorization.

168868861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23643.

The product of its digits is 884736, while the sum is 52.

The square root of 168868861 is about 12994.9552134665. The cubic root of 168868861 is about 552.7344388398.

The spelling of 168868861 in words is "one hundred sixty-eight million, eight hundred sixty-eight thousand, eight hundred sixty-one".