16878043 has 24 divisors (see below), whose sum is σ = 21575904. Its totient is φ = 12856320.

The previous prime is 16878041. The next prime is 16878047. The reversal of 16878043 is 34087861.

It is a happy number.

It is not a de Polignac number, because 16878043 - 2¹ = 16878041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16877993 and 16878011.

It is not an unprimeable number, because it can be changed into a prime (16878041) 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 23 ways as a sum of consecutive naturals, for example, 87355 + ... + 87547.

It is an arithmetic number, because the mean of its divisors is an integer number (898996).

Almost surely, 2^16878043 is an apocalyptic number.

16878043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16878043 is a deficient number, since it is larger than the sum of its proper divisors (4697861).

16878043 is a wasteful number, since it uses less digits than its factorization.

16878043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 16878043 is about 4108.2895467579. The cubic root of 16878043 is about 256.5118087247.

It can be divided in two parts, 1687 and 8043, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 16878043 in words is "sixteen million, eight hundred seventy-eight thousand, forty-three".