16868895 has 8 divisors (see below), whose sum is σ = 26990256. Its totient is φ = 8996736.

The previous prime is 16868869. The next prime is 16868897. The reversal of 16868895 is 59886861.

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

It is not a de Polignac number, because 16868895 - 2⁸ = 16868639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16868897) 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, 562282 + ... + 562311.

It is an arithmetic number, because the mean of its divisors is an integer number (3373782).

Almost surely, 2^16868895 is an apocalyptic number.

16868895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16868895 is a deficient number, since it is larger than the sum of its proper divisors (10121361).

16868895 is a wasteful number, since it uses less digits than its factorization.

16868895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124601.

The product of its digits is 829440, while the sum is 51.

The square root of 16868895 is about 4107.1760371331. The cubic root of 16868895 is about 256.4654567057.

The spelling of 16868895 in words is "sixteen million, eight hundred sixty-eight thousand, eight hundred ninety-five".