4140397 has 2 divisors, whose sum is σ = 4140398. Its totient is φ = 4140396.

The previous prime is 4140379. The next prime is 4140419. The reversal of 4140397 is 7930414.

Together with previous prime (4140379) 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., 4104676 + 35721 = 2026^2 + 189^2 .

It is a cyclic number.

It is not a de Polignac number, because 4140397 - 2¹¹ = 4138349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4140377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2070198 + 2070199.

It is an arithmetic number, because the mean of its divisors is an integer number (2070199).

Almost surely, 2^4140397 is an apocalyptic number.

It is an amenable number.

4140397 is a deficient number, since it is larger than the sum of its proper divisors (1).

4140397 is an equidigital number, since it uses as much as digits as its factorization.

4140397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 4140397 is about 2034.7965500266. The cubic root of 4140397 is about 160.5760097786.

The spelling of 4140397 in words is "four million, one hundred forty thousand, three hundred ninety-seven".