168906902 has 8 divisors (see below), whose sum is σ = 253793736. Its totient is φ = 84308992.

The previous prime is 168906901. The next prime is 168906923. The reversal of 168906902 is 209609861.

168906902 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 168906902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168906901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70763 + ... + 73110.

It is an arithmetic number, because the mean of its divisors is an integer number (31724217).

Almost surely, 2^168906902 is an apocalyptic number.

168906902 is a deficient number, since it is larger than the sum of its proper divisors (84886834).

168906902 is a wasteful number, since it uses less digits than its factorization.

168906902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144462.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 168906902 is about 12996.4188144273. The cubic root of 168906902 is about 552.7759404563.

The spelling of 168906902 in words is "one hundred sixty-eight million, nine hundred six thousand, nine hundred two".