16723873 has 2 divisors, whose sum is σ = 16723874. Its totient is φ = 16723872.

The previous prime is 16723843. The next prime is 16723891. The reversal of 16723873 is 37832761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9690769 + 7033104 = 3113^2 + 2652^2 .

It is a cyclic number.

It is not a de Polignac number, because 16723873 - 2⁹ = 16723361 is a prime.

It is not a weakly prime, because it can be changed into another prime (16723813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8361936 + 8361937.

It is an arithmetic number, because the mean of its divisors is an integer number (8361937).

Almost surely, 2^16723873 is an apocalyptic number.

It is an amenable number.

16723873 is a deficient number, since it is larger than the sum of its proper divisors (1).

16723873 is an equidigital number, since it uses as much as digits as its factorization.

16723873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 37.

The square root of 16723873 is about 4089.4832191855. The cubic root of 16723873 is about 255.7283954132.

The spelling of 16723873 in words is "sixteen million, seven hundred twenty-three thousand, eight hundred seventy-three".