306704 has 20 divisors (see below), whose sum is σ = 615660. Its totient is φ = 147840.

The previous prime is 306703. The next prime is 306707. The reversal of 306704 is 407603.

306704 is digitally balanced in base 3, 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 2 ways, for example, as 204304 + 102400 = 452^2 + 320^2 .

It is not an unprimeable number, because it can be changed into a prime (306701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134 + ... + 794.

It is an arithmetic number, because the mean of its divisors is an integer number (30783).

2³⁰⁶⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 306704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307830).

306704 is an abundant number, since it is smaller than the sum of its proper divisors (308956).

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

306704 is a wasteful number, since it uses less digits than its factorization.

306704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 306704 is about 553.8086312076. The cubic root of 306704 is about 67.4382792004.

The spelling of 306704 in words is "three hundred six thousand, seven hundred four".