16709868 has 144 divisors (see below), whose sum is σ = 53383680. Its totient is φ = 4419360.

The previous prime is 16709857. The next prime is 16709879. The reversal of 16709868 is 86890761.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16709857) and next prime (16709879).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 539013 + ... + 539043.

It is an arithmetic number, because the mean of its divisors is an integer number (370720).

Almost surely, 2^16709868 is an apocalyptic number.

16709868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16709868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26691840).

16709868 is an abundant number, since it is smaller than the sum of its proper divisors (36673812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16709868 is a wasteful number, since it uses less digits than its factorization.

16709868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 16709868 is about 4087.7705415055. The cubic root of 16709868 is about 255.6569909727.

The spelling of 16709868 in words is "sixteen million, seven hundred nine thousand, eight hundred sixty-eight".