428079 has 8 divisors (see below), whose sum is σ = 589312. Its totient is φ = 276120.

The previous prime is 428047. The next prime is 428083. The reversal of 428079 is 970824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 428079 - 2⁵ = 428047 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 (428039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2209 + ... + 2394.

It is an arithmetic number, because the mean of its divisors is an integer number (73664).

2⁴²⁸⁰⁷⁹ is an apocalyptic number.

428079 is a deficient number, since it is larger than the sum of its proper divisors (161233).

428079 is a wasteful number, since it uses less digits than its factorization.

428079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4637.

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

The square root of 428079 is about 654.2774640777. The cubic root of 428079 is about 75.3658568593.

The spelling of 428079 in words is "four hundred twenty-eight thousand, seventy-nine".