695686806 has 20 divisors (see below), whose sum is σ = 1558854132. Its totient is φ = 231895548.

The previous prime is 695686793. The next prime is 695686807. The reversal of 695686806 is 608686596.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (695686807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2147020 + ... + 2147343.

Almost surely, 2^695686806 is an apocalyptic number.

695686806 is an abundant number, since it is smaller than the sum of its proper divisors (863167326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

695686806 is a wasteful number, since it uses less digits than its factorization.

695686806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4294377 (or 4294368 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The square root of 695686806 is about 26375.8754546650. The cubic root of 695686806 is about 886.0765755127.

The spelling of 695686806 in words is "six hundred ninety-five million, six hundred eighty-six thousand, eight hundred six".