16321373 has 2 divisors, whose sum is σ = 16321374.
Its totient is φ = 16321372.
The previous prime is 16321351. The next prime is 16321387. The reversal of 16321373 is 37312361.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 8631844 + 7689529 = 2938^2 + 2773^2
It is a cyclic number.
It is not a de Polignac number, because 16321373 - 212 = 16317277 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (16321303) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8160686 + 8160687.
It is an arithmetic number, because the mean of its divisors is an integer number (8160687).
Almost surely, 216321373 is an apocalyptic number.
It is an amenable number.
16321373 is a deficient number, since it is larger than the sum of its proper divisors (1).
16321373 is an equidigital number, since it uses as much as digits as its factorization.
16321373 is an evil number, because the sum of its binary digits is even.
The product of its digits is 2268, while the sum is 26.
The square root of 16321373 is about 4039.9719058429.
The cubic root of 16321373 is about 253.6601412841.
The spelling of 16321373 in words is "sixteen million, three hundred twenty-one thousand, three hundred seventy-three".