684116 has 6 divisors (see below), whose sum is σ = 1197210. Its totient is φ = 342056.

The previous prime is 684113. The next prime is 684119. The reversal of 684116 is 611486.

It is an interprime number because it is at equal distance from previous prime (684113) and next prime (684119).

It can be written as a sum of positive squares in only one way, i.e., 568516 + 115600 = 754^2 + 340^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85511 + ... + 85518.

It is an arithmetic number, because the mean of its divisors is an integer number (199535).

2⁶⁸⁴¹¹⁶ is an apocalyptic number.

It is an amenable number.

684116 is a deficient number, since it is larger than the sum of its proper divisors (513094).

684116 is a wasteful number, since it uses less digits than its factorization.

684116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171033 (or 171031 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 684116 is about 827.1130515232. The cubic root of 684116 is about 88.1136616702.

The spelling of 684116 in words is "six hundred eighty-four thousand, one hundred sixteen".