325729 has 2 divisors, whose sum is σ = 325730. Its totient is φ = 325728.

The previous prime is 325723. The next prime is 325747. The reversal of 325729 is 927523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 304704 + 21025 = 552^2 + 145^2 .

It is a cyclic number.

It is not a de Polignac number, because 325729 - 2⁵ = 325697 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 325697 and 325706.

It is not a weakly prime, because it can be changed into another prime (325723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162864 + 162865.

It is an arithmetic number, because the mean of its divisors is an integer number (162865).

2³²⁵⁷²⁹ is an apocalyptic number.

It is an amenable number.

325729 is a deficient number, since it is larger than the sum of its proper divisors (1).

325729 is an equidigital number, since it uses as much as digits as its factorization.

325729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 28.

The square root of 325729 is about 570.7267297052. The cubic root of 325729 is about 68.8048113861.

The spelling of 325729 in words is "three hundred twenty-five thousand, seven hundred twenty-nine".