426939 has 8 divisors (see below), whose sum is σ = 578832. Its totient is φ = 279840.

The previous prime is 426931. The next prime is 426941. The reversal of 426939 is 939624.

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

It is not a de Polignac number, because 426939 - 2³ = 426931 is a prime.

It is a d-powerful number, because it can be written as 4⁹ + 2⁵ + 9 + 6⁶ + 3¹⁰ + 9⁵ .

426939 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984 + ... + 1349.

It is an arithmetic number, because the mean of its divisors is an integer number (72354).

2⁴²⁶⁹³⁹ is an apocalyptic number.

426939 is a deficient number, since it is larger than the sum of its proper divisors (151893).

426939 is a wasteful number, since it uses less digits than its factorization.

426939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397.

The product of its digits is 11664, while the sum is 33.

The square root of 426939 is about 653.4056932718. The cubic root of 426939 is about 75.2988961213.

The spelling of 426939 in words is "four hundred twenty-six thousand, nine hundred thirty-nine".