168871469 has 8 divisors (see below), whose sum is σ = 182097720. Its totient is φ = 155678976.

The previous prime is 168871463. The next prime is 168871499. The reversal of 168871469 is 964178861.

It can be written as a sum of positive squares in 4 ways, for example, as 24631369 + 144240100 = 4963^2 + 12010^2 .

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 168871469 - 2⁴ = 168871453 is a prime.

It is a super-2 number, since 2×168871469² = 57035146084435922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168871463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2489 + ... + 18545.

It is an arithmetic number, because the mean of its divisors is an integer number (22762215).

Almost surely, 2^168871469 is an apocalyptic number.

It is an amenable number.

168871469 is a deficient number, since it is larger than the sum of its proper divisors (13226251).

168871469 is a wasteful number, since it uses less digits than its factorization.

168871469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16879.

The product of its digits is 580608, while the sum is 50.

The square root of 168871469 is about 12995.0555597119. The cubic root of 168871469 is about 552.7372842904.

The spelling of 168871469 in words is "one hundred sixty-eight million, eight hundred seventy-one thousand, four hundred sixty-nine".