16323613 has 2 divisors, whose sum is σ = 16323614. Its totient is φ = 16323612.

The previous prime is 16323611. The next prime is 16323631. The reversal of 16323613 is 31632361.

16323613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (16323631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16297369 + 26244 = 4037^2 + 162^2 .

It is a cyclic number.

It is not a de Polignac number, because 16323613 - 2¹ = 16323611 is a prime.

Together with 16323611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16323611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8161806 + 8161807.

It is an arithmetic number, because the mean of its divisors is an integer number (8161807).

Almost surely, 2^16323613 is an apocalyptic number.

It is an amenable number.

16323613 is a deficient number, since it is larger than the sum of its proper divisors (1).

16323613 is an equidigital number, since it uses as much as digits as its factorization.

16323613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 25.

The square root of 16323613 is about 4040.2491259822. The cubic root of 16323613 is about 253.6717451429.

Adding to 16323613 its reverse (31632361), we get a palindrome (47955974).

The spelling of 16323613 in words is "sixteen million, three hundred twenty-three thousand, six hundred thirteen".