6987650 has 12 divisors (see below), whose sum is σ = 12997122. Its totient is φ = 2795040.

The previous prime is 6987619. The next prime is 6987661. The reversal of 6987650 is 567896.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6589489 + 398161 = 2567^2 + 631^2 .

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 6987598 and 6987607.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69827 + ... + 69926.

Almost surely, 2^6987650 is an apocalyptic number.

6987650 is a deficient number, since it is larger than the sum of its proper divisors (6009472).

6987650 is a wasteful number, since it uses less digits than its factorization.

6987650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139765 (or 139760 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 6987650 is about 2643.4163501045. The cubic root of 6987650 is about 191.1805534805.

The spelling of 6987650 in words is "six million, nine hundred eighty-seven thousand, six hundred fifty".