6987224 has 8 divisors (see below), whose sum is σ = 13101060. Its totient is φ = 3493608.

The previous prime is 6987203. The next prime is 6987241. The reversal of 6987224 is 4227896.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a d-powerful number, because it can be written as 6⁸ + 9⁷ + 8 + 7³ + 2¹⁷ + 2¹⁷ + 4⁹ .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436694 + ... + 436709.

Almost surely, 2^6987224 is an apocalyptic number.

It is an amenable number.

6987224 is a deficient number, since it is larger than the sum of its proper divisors (6113836).

6987224 is a wasteful number, since it uses less digits than its factorization.

6987224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873409 (or 873405 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 6987224 is about 2643.3357713314. The cubic root of 6987224 is about 191.1766683131.

It can be divided in two parts, 69872 and 24, that added together give a palindrome (69896).

The spelling of 6987224 in words is "six million, nine hundred eighty-seven thousand, two hundred twenty-four".