406347 has 4 divisors (see below), whose sum is σ = 541800. Its totient is φ = 270896.

The previous prime is 406339. The next prime is 406349. The reversal of 406347 is 743604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 406347 - 2³ = 406339 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (406349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67722 + ... + 67727.

It is an arithmetic number, because the mean of its divisors is an integer number (135450).

2⁴⁰⁶³⁴⁷ is an apocalyptic number.

406347 is a deficient number, since it is larger than the sum of its proper divisors (135453).

406347 is a wasteful number, since it uses less digits than its factorization.

406347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135452.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 406347 is about 637.4535277179. The cubic root of 406347 is about 74.0682958487.

The spelling of 406347 in words is "four hundred six thousand, three hundred forty-seven".