168478887 has 8 divisors (see below), whose sum is σ = 234405504. Its totient is φ = 107435768.

The previous prime is 168478873. The next prime is 168478907. The reversal of 168478887 is 788874861.

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 168478887 - 2¹¹ = 168476839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168478847) 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, 1220793 + ... + 1220930.

It is an arithmetic number, because the mean of its divisors is an integer number (29300688).

Almost surely, 2^168478887 is an apocalyptic number.

168478887 is a deficient number, since it is larger than the sum of its proper divisors (65926617).

168478887 is a wasteful number, since it uses less digits than its factorization.

168478887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441749.

The product of its digits is 4816896, while the sum is 57.

The square root of 168478887 is about 12979.9417178969. The cubic root of 168478887 is about 552.3086287389.

The spelling of 168478887 in words is "one hundred sixty-eight million, four hundred seventy-eight thousand, eight hundred eighty-seven".