684419068 has 12 divisors (see below), whose sum is σ = 1226946672. Its totient is φ = 333862880.

The previous prime is 684419059. The next prime is 684419069. The reversal of 684419068 is 860914486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684419069) 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, 2086480 + ... + 2086807.

It is an arithmetic number, because the mean of its divisors is an integer number (102245556).

Almost surely, 2^684419068 is an apocalyptic number.

It is an amenable number.

684419068 is a deficient number, since it is larger than the sum of its proper divisors (542527604).

684419068 is a wasteful number, since it uses less digits than its factorization.

684419068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173332 (or 4173330 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 684419068 is about 26161.4041672078. The cubic root of 684419068 is about 881.2667139797.

The spelling of 684419068 in words is "six hundred eighty-four million, four hundred nineteen thousand, sixty-eight".