684888486 has 32 divisors (see below), whose sum is σ = 1451507040. Its totient is φ = 214695936.

The previous prime is 684888481. The next prime is 684888493.

684888486 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684888481) 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 15 ways as a sum of consecutive naturals, for example, 204070 + ... + 207398.

It is an arithmetic number, because the mean of its divisors is an integer number (45359595).

Almost surely, 2^684888486 is an apocalyptic number.

684888486 is an abundant number, since it is smaller than the sum of its proper divisors (766618554).

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

684888486 is a wasteful number, since it uses less digits than its factorization.

684888486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5368.

The product of its digits is 18874368, while the sum is 60.

The square root of 684888486 is about 26170.3742044320. The cubic root of 684888486 is about 881.4681441352.

The spelling of 684888486 in words is "six hundred eighty-four million, eight hundred eighty-eight thousand, four hundred eighty-six".