16868885 has 8 divisors (see below), whose sum is σ = 22082976. Its totient is φ = 12268240.

The previous prime is 16868869. The next prime is 16868897. The reversal of 16868885 is 58886861.

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

It is not a de Polignac number, because 16868885 - 2⁴ = 16868869 is a prime.

It is a super-2 number, since 2×16868885² = 569118562286450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153299 + ... + 153408.

It is an arithmetic number, because the mean of its divisors is an integer number (2760372).

Almost surely, 2^16868885 is an apocalyptic number.

It is an amenable number.

16868885 is a deficient number, since it is larger than the sum of its proper divisors (5214091).

16868885 is a wasteful number, since it uses less digits than its factorization.

16868885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306723.

The product of its digits is 737280, while the sum is 50.

The square root of 16868885 is about 4107.1748197514. The cubic root of 16868885 is about 256.4654060275.

The spelling of 16868885 in words is "sixteen million, eight hundred sixty-eight thousand, eight hundred eighty-five".