5687397 has 12 divisors (see below), whose sum is σ = 8416044. Its totient is φ = 3698880.

The previous prime is 5687389. The next prime is 5687413. The reversal of 5687397 is 7937865.

It is a happy number.

5687397 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2414916 + 3272481 = 1554^2 + 1809^2 .

It is not a de Polignac number, because 5687397 - 2³ = 5687389 is a prime.

5687397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5687317) 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 in 11 ways as a sum of consecutive naturals, for example, 7338 + ... + 8075.

It is an arithmetic number, because the mean of its divisors is an integer number (701337).

Almost surely, 2^5687397 is an apocalyptic number.

It is an amenable number.

5687397 is a deficient number, since it is larger than the sum of its proper divisors (2728647).

5687397 is a wasteful number, since it uses less digits than its factorization.

5687397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15460 (or 15457 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 5687397 is about 2384.8264087770. The cubic root of 5687397 is about 178.4998469975.

It can be divided in two parts, 5687 and 397, that added together give a square (6084 = 78²).

The spelling of 5687397 in words is "five million, six hundred eighty-seven thousand, three hundred ninety-seven".