6987737 has 2 divisors, whose sum is σ = 6987738. Its totient is φ = 6987736.

The previous prime is 6987727. The next prime is 6987751. The reversal of 6987737 is 7377896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6255001 + 732736 = 2501^2 + 856^2 .

It is a cyclic number.

It is not a de Polignac number, because 6987737 - 2¹⁰ = 6986713 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6987691 and 6987700.

It is not a weakly prime, because it can be changed into another prime (6987707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3493868 + 3493869.

It is an arithmetic number, because the mean of its divisors is an integer number (3493869).

Almost surely, 2^6987737 is an apocalyptic number.

It is an amenable number.

6987737 is a deficient number, since it is larger than the sum of its proper divisors (1).

6987737 is an equidigital number, since it uses as much as digits as its factorization.

6987737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 47.

The square root of 6987737 is about 2643.4328060308. The cubic root of 6987737 is about 191.1813469108.

The spelling of 6987737 in words is "six million, nine hundred eighty-seven thousand, seven hundred thirty-seven".