6695631 has 12 divisors (see below), whose sum is σ = 9933352. Its totient is φ = 4342896.

The previous prime is 6695629. The next prime is 6695639. The reversal of 6695631 is 1365966.

It is not a de Polignac number, because 6695631 - 2¹ = 6695629 is a prime.

It is a super-4 number, since 4×6695631⁴ (a number of 28 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6695639) 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 11 ways as a sum of consecutive naturals, for example, 9721 + ... + 10386.

Almost surely, 2^6695631 is an apocalyptic number.

6695631 is a deficient number, since it is larger than the sum of its proper divisors (3237721).

6695631 is a wasteful number, since it uses less digits than its factorization.

6695631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20150 (or 20147 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 6695631 is about 2587.5917375042. The cubic root of 6695631 is about 188.4793768055.

The spelling of 6695631 in words is "six million, six hundred ninety-five thousand, six hundred thirty-one".