6987231 has 24 divisors (see below), whose sum is σ = 10998000. Its totient is φ = 4257792.

The previous prime is 6987203. The next prime is 6987241. The reversal of 6987231 is 1327896.

It is not a de Polignac number, because 6987231 - 2⁷ = 6987103 is a prime.

It is a super-2 number, since 2×6987231² = 97642794094722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6987241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4255 + ... + 5663.

It is an arithmetic number, because the mean of its divisors is an integer number (458250).

Almost surely, 2^6987231 is an apocalyptic number.

6987231 is a deficient number, since it is larger than the sum of its proper divisors (4010769).

6987231 is a wasteful number, since it uses less digits than its factorization.

6987231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463 (or 1460 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 6987231 is about 2643.3370954156. The cubic root of 6987231 is about 191.1767321551.

The spelling of 6987231 in words is "six million, nine hundred eighty-seven thousand, two hundred thirty-one".