306725 has 6 divisors (see below), whose sum is σ = 380370. Its totient is φ = 245360.

The previous prime is 306707. The next prime is 306727. The reversal of 306725 is 527603.

It can be written as a sum of positive squares in 3 ways, for example, as 77284 + 229441 = 278^2 + 479^2 .

It is not a de Polignac number, because 306725 - 2⁶ = 306661 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 306725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6110 + ... + 6159.

It is an arithmetic number, because the mean of its divisors is an integer number (63395).

2³⁰⁶⁷²⁵ is an apocalyptic number.

It is an amenable number.

306725 is a deficient number, since it is larger than the sum of its proper divisors (73645).

306725 is a wasteful number, since it uses less digits than its factorization.

306725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12279 (or 12274 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 306725 is about 553.8275905009. The cubic root of 306725 is about 67.4398183299.

The spelling of 306725 in words is "three hundred six thousand, seven hundred twenty-five".