16868071 has 4 divisors (see below), whose sum is σ = 18401544. Its totient is φ = 15334600.

The previous prime is 16868069. The next prime is 16868087. The reversal of 16868071 is 17086861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16868071 - 2¹ = 16868069 is a prime.

It is a super-2 number, since 2×16868071² = 569063638522082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16868071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16268071) 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 3 ways as a sum of consecutive naturals, for example, 766720 + ... + 766741.

It is an arithmetic number, because the mean of its divisors is an integer number (4600386).

Almost surely, 2^16868071 is an apocalyptic number.

16868071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16868071 is a deficient number, since it is larger than the sum of its proper divisors (1533473).

16868071 is a wasteful number, since it uses less digits than its factorization.

16868071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533472.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 16868071 is about 4107.0757236749. The cubic root of 16868071 is about 256.4612807559.

The spelling of 16868071 in words is "sixteen million, eight hundred sixty-eight thousand, seventy-one".