323780 has 12 divisors (see below), whose sum is σ = 679980. Its totient is φ = 129504.

The previous prime is 323767. The next prime is 323789. The reversal of 323780 is 87323.

It can be written as a sum of positive squares in 2 ways, for example, as 135424 + 188356 = 368^2 + 434^2 .

It is not an unprimeable number, because it can be changed into a prime (323789) by changing a digit.

323780 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8075 + ... + 8114.

It is an arithmetic number, because the mean of its divisors is an integer number (56665).

2³²³⁷⁸⁰ is an apocalyptic number.

It is an amenable number.

323780 is an abundant number, since it is smaller than the sum of its proper divisors (356200).

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

323780 is a wasteful number, since it uses less digits than its factorization.

323780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16198 (or 16196 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 323780 is about 569.0166957129. The cubic root of 323780 is about 68.6673055313.

The spelling of 323780 in words is "three hundred twenty-three thousand, seven hundred eighty".