684936050 has 24 divisors (see below), whose sum is σ = 1282110276. Its totient is φ = 272226240.

The previous prime is 684936017. The next prime is 684936059. The reversal of 684936050 is 50639486.

684936050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 80120401 + 604815649 = 8951^2 + 24593^2 .

It is a junction number, because it is equal to n+sod(n) for n = 684935989 and 684936007.

It is not an unprimeable number, because it can be changed into a prime (684936059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35777 + ... + 51476.

Almost surely, 2^684936050 is an apocalyptic number.

684936050 is a deficient number, since it is larger than the sum of its proper divisors (597174226).

684936050 is a wasteful number, since it uses less digits than its factorization.

684936050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87422 (or 87417 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 684936050 is about 26171.2829261387. The cubic root of 684936050 is about 881.4885490046.

The spelling of 684936050 in words is "six hundred eighty-four million, nine hundred thirty-six thousand, fifty".