684884246 has 8 divisors (see below), whose sum is σ = 1030237704. Its totient is φ = 341471680.

The previous prime is 684884243. The next prime is 684884257. The reversal of 684884246 is 642488486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 684884194 and 684884203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684884243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484340 + ... + 485751.

It is an arithmetic number, because the mean of its divisors is an integer number (128779713).

Almost surely, 2^684884246 is an apocalyptic number.

684884246 is a deficient number, since it is larger than the sum of its proper divisors (345353458).

684884246 is a wasteful number, since it uses less digits than its factorization.

684884246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970446.

The product of its digits is 2359296, while the sum is 50.

The square root of 684884246 is about 26170.2931966763. The cubic root of 684884246 is about 881.4663251371.

The spelling of 684884246 in words is "six hundred eighty-four million, eight hundred eighty-four thousand, two hundred forty-six".