16378673 has 2 divisors, whose sum is σ = 16378674. Its totient is φ = 16378672.

The previous prime is 16378613. The next prime is 16378693. The reversal of 16378673 is 37687361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16056049 + 322624 = 4007^2 + 568^2 .

It is an emirp because it is prime and its reverse (37687361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16378673 - 2¹⁰ = 16377649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16378673.

It is not a weakly prime, because it can be changed into another prime (16378613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8189336 + 8189337.

It is an arithmetic number, because the mean of its divisors is an integer number (8189337).

Almost surely, 2^16378673 is an apocalyptic number.

It is an amenable number.

16378673 is a deficient number, since it is larger than the sum of its proper divisors (1).

16378673 is an equidigital number, since it uses as much as digits as its factorization.

16378673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 41.

The square root of 16378673 is about 4047.0573260086. The cubic root of 16378673 is about 253.9566390114.

The spelling of 16378673 in words is "sixteen million, three hundred seventy-eight thousand, six hundred seventy-three".