327405 has 32 divisors (see below), whose sum is σ = 596736. Its totient is φ = 152064.

The previous prime is 327401. The next prime is 327407. The reversal of 327405 is 504723.

It is a happy number.

It is not a de Polignac number, because 327405 - 2² = 327401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4449 + ... + 4521.

It is an arithmetic number, because the mean of its divisors is an integer number (18648).

2³²⁷⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

327405 is a deficient number, since it is larger than the sum of its proper divisors (269331).

327405 is a wasteful number, since it uses less digits than its factorization.

327405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 327405 is about 572.1931492075. The cubic root of 327405 is about 68.9226185655.

It can be divided in two parts, 3 and 27405, that multiplied together give a triangular number (82215 = T₄₀₅).

The spelling of 327405 in words is "three hundred twenty-seven thousand, four hundred five".