408279 has 4 divisors (see below), whose sum is σ = 544376. Its totient is φ = 272184.

The previous prime is 408271. The next prime is 408283. The reversal of 408279 is 972804.

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

It is not a de Polignac number, because 408279 - 2³ = 408271 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408271) 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, 68044 + ... + 68049.

It is an arithmetic number, because the mean of its divisors is an integer number (136094).

2⁴⁰⁸²⁷⁹ is an apocalyptic number.

408279 is a deficient number, since it is larger than the sum of its proper divisors (136097).

408279 is a wasteful number, since it uses less digits than its factorization.

408279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136096.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 408279 is about 638.9671353051. The cubic root of 408279 is about 74.1854976101.

The spelling of 408279 in words is "four hundred eight thousand, two hundred seventy-nine".