3187397 has 2 divisors, whose sum is σ = 3187398. Its totient is φ = 3187396.

The previous prime is 3187343. The next prime is 3187411. The reversal of 3187397 is 7937813.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2076481 + 1110916 = 1441^2 + 1054^2 .

It is a cyclic number.

It is not a de Polignac number, because 3187397 - 2¹⁰ = 3186373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3187397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3184397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1593698 + 1593699.

It is an arithmetic number, because the mean of its divisors is an integer number (1593699).

Almost surely, 2^3187397 is an apocalyptic number.

It is an amenable number.

3187397 is a deficient number, since it is larger than the sum of its proper divisors (1).

3187397 is an equidigital number, since it uses as much as digits as its factorization.

3187397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 38.

The square root of 3187397 is about 1785.3282611329. The cubic root of 3187397 is about 147.1675477107.

The spelling of 3187397 in words is "three million, one hundred eighty-seven thousand, three hundred ninety-seven".