691416968 has 16 divisors (see below), whose sum is σ = 1414262160. Its totient is φ = 314280400.

The previous prime is 691416967. The next prime is 691416991. The reversal of 691416968 is 869614196.

It is not an unprimeable number, because it can be changed into a prime (691416967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3928418 + ... + 3928593.

It is an arithmetic number, because the mean of its divisors is an integer number (88391385).

Almost surely, 2^691416968 is an apocalyptic number.

It is an amenable number.

691416968 is an abundant number, since it is smaller than the sum of its proper divisors (722845192).

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

691416968 is a wasteful number, since it uses less digits than its factorization.

691416968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7857028 (or 7857024 counting only the distinct ones).

The product of its digits is 559872, while the sum is 50.

The square root of 691416968 is about 26294.8087652297. The cubic root of 691416968 is about 884.2600635308.

The spelling of 691416968 in words is "six hundred ninety-one million, four hundred sixteen thousand, nine hundred sixty-eight".