2016397 has 2 divisors, whose sum is σ = 2016398. Its totient is φ = 2016396.

The previous prime is 2016373. The next prime is 2016401. The reversal of 2016397 is 7936102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1121481 + 894916 = 1059^2 + 946^2 .

It is a cyclic number.

It is not a de Polignac number, because 2016397 - 2⁷ = 2016269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2016367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1008198 + 1008199.

It is an arithmetic number, because the mean of its divisors is an integer number (1008199).

2^2016397 is an apocalyptic number.

It is an amenable number.

2016397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2016397 is an equidigital number, since it uses as much as digits as its factorization.

2016397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 2016397 is about 1419.9989436616. The cubic root of 2016397 is about 126.3354837196.

The spelling of 2016397 in words is "two million, sixteen thousand, three hundred ninety-seven".