16670043 has 28 divisors (see below), whose sum is σ = 26931520. Its totient is φ = 10252656.

The previous prime is 16670039. The next prime is 16670057. The reversal of 16670043 is 34007661.

It is not a de Polignac number, because 16670043 - 2² = 16670039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16669989 and 16670016.

It is not an unprimeable number, because it can be changed into a prime (16670063) by changing a digit.

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 27 ways as a sum of consecutive naturals, for example, 8598 + ... + 10356.

It is an arithmetic number, because the mean of its divisors is an integer number (961840).

Almost surely, 2^16670043 is an apocalyptic number.

16670043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16670043 is a deficient number, since it is larger than the sum of its proper divisors (10261477).

16670043 is an equidigital number, since it uses as much as digits as its factorization.

16670043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790 (or 1775 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 16670043 is about 4082.8963983917. The cubic root of 16670043 is about 255.4537250738.

The spelling of 16670043 in words is "sixteen million, six hundred seventy thousand, forty-three".