6996687 has 8 divisors (see below), whose sum is σ = 9419904. Its totient is φ = 4618968.

The previous prime is 6996679. The next prime is 6996701. The reversal of 6996687 is 7866996.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6996687 - 2³ = 6996679 is a prime.

It is a d-powerful number, because it can be written as 6² + 9⁶ + 9⁷ + 6³ + 6⁸ + 8 + 7⁴ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6991687) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 11013 + ... + 11630.

It is an arithmetic number, because the mean of its divisors is an integer number (1177488).

Almost surely, 2^6996687 is an apocalyptic number.

6996687 is a deficient number, since it is larger than the sum of its proper divisors (2423217).

6996687 is a wasteful number, since it uses less digits than its factorization.

6996687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22749.

The product of its digits is 979776, while the sum is 51.

The square root of 6996687 is about 2645.1251388167. The cubic root of 6996687 is about 191.2629347482.

The spelling of 6996687 in words is "six million, nine hundred ninety-six thousand, six hundred eighty-seven".