691225484 has 6 divisors (see below), whose sum is σ = 1209644604. Its totient is φ = 345612740.

The previous prime is 691225477. The next prime is 691225501. The reversal of 691225484 is 484522196.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 86403182 + ... + 86403189.

It is an arithmetic number, because the mean of its divisors is an integer number (201607434).

Almost surely, 2^691225484 is an apocalyptic number.

It is an amenable number.

691225484 is a deficient number, since it is larger than the sum of its proper divisors (518419120).

691225484 is a wasteful number, since it uses less digits than its factorization.

691225484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172806375 (or 172806373 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 691225484 is about 26291.1674141716. The cubic root of 691225484 is about 884.1784257275.

The spelling of 691225484 in words is "six hundred ninety-one million, two hundred twenty-five thousand, four hundred eighty-four".