407279 has 4 divisors (see below), whose sum is σ = 410520. Its totient is φ = 404040.

The previous prime is 407273. The next prime is 407287. The reversal of 407279 is 972704.

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 407279 - 2⁴ = 407263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (407273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1424 + ... + 1685.

It is an arithmetic number, because the mean of its divisors is an integer number (102630).

2⁴⁰⁷²⁷⁹ is an apocalyptic number.

407279 is a deficient number, since it is larger than the sum of its proper divisors (3241).

407279 is a wasteful number, since it uses less digits than its factorization.

407279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3240.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 407279 is about 638.1841427049. The cubic root of 407279 is about 74.1248804440.

It can be divided in two parts, 407 and 279, that added together give a palindrome (686).

The spelling of 407279 in words is "four hundred seven thousand, two hundred seventy-nine".