6636087 has 14 divisors (see below), whose sum is σ = 9950672. Its totient is φ = 4423572.

The previous prime is 6636083. The next prime is 6636101. The reversal of 6636087 is 7806366.

It is a happy number.

It is not a de Polignac number, because 6636087 - 2² = 6636083 is a prime.

It is a Duffinian number.

6636087 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6636083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3823 + ... + 5280.

Almost surely, 2^6636087 is an apocalyptic number.

6636087 is a deficient number, since it is larger than the sum of its proper divisors (3314585).

6636087 is an frugal number, since it uses more digits than its factorization.

6636087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9121 (or 9106 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 6636087 is about 2576.0603641996. The cubic root of 6636087 is about 187.9189989818.

The spelling of 6636087 in words is "six million, six hundred thirty-six thousand, eighty-seven".