16197793 has 2 divisors, whose sum is σ = 16197794. Its totient is φ = 16197792.

The previous prime is 16197791. The next prime is 16197827. The reversal of 16197793 is 39779161.

16197793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16136289 + 61504 = 4017^2 + 248^2 .

It is a cyclic number.

It is not a de Polignac number, because 16197793 - 2¹ = 16197791 is a prime.

Together with 16197791, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16197791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8098896 + 8098897.

It is an arithmetic number, because the mean of its divisors is an integer number (8098897).

Almost surely, 2^16197793 is an apocalyptic number.

It is an amenable number.

16197793 is a deficient number, since it is larger than the sum of its proper divisors (1).

16197793 is an equidigital number, since it uses as much as digits as its factorization.

16197793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 71442, while the sum is 43.

The square root of 16197793 is about 4024.6481833820. The cubic root of 16197793 is about 253.0183086002.

The spelling of 16197793 in words is "sixteen million, one hundred ninety-seven thousand, seven hundred ninety-three".