6987849 has 16 divisors (see below), whose sum is σ = 10264320. Its totient is φ = 4193360.

The previous prime is 6987847. The next prime is 6987863. The reversal of 6987849 is 9487896.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6987849 - 2¹ = 6987847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6987847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2542 + ... + 4520.

It is an arithmetic number, because the mean of its divisors is an integer number (641520).

Almost surely, 2^6987849 is an apocalyptic number.

It is an amenable number.

6987849 is a deficient number, since it is larger than the sum of its proper divisors (3276471).

6987849 is a wasteful number, since it uses less digits than its factorization.

6987849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100.

The product of its digits is 870912, while the sum is 51.

The square root of 6987849 is about 2643.4539905207. The cubic root of 6987849 is about 191.1823683286.

The spelling of 6987849 in words is "six million, nine hundred eighty-seven thousand, eight hundred forty-nine".