691827676 has 12 divisors (see below), whose sum is σ = 1212200640. Its totient is φ = 345484640.

The previous prime is 691827671. The next prime is 691827691. The reversal of 691827676 is 676728196.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (691827671) 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 3 ways as a sum of consecutive naturals, for example, 103660 + ... + 110131.

It is an arithmetic number, because the mean of its divisors is an integer number (101016720).

Almost surely, 2^691827676 is an apocalyptic number.

It is an amenable number.

691827676 is a deficient number, since it is larger than the sum of its proper divisors (520372964).

691827676 is a wasteful number, since it uses less digits than its factorization.

691827676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214604 (or 214602 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 52.

The square root of 691827676 is about 26302.6172842172. The cubic root of 691827676 is about 884.4351150619.

The spelling of 691827676 in words is "six hundred ninety-one million, eight hundred twenty-seven thousand, six hundred seventy-six".