426783 has 8 divisors (see below), whose sum is σ = 650368. Its totient is φ = 243864.

The previous prime is 426779. The next prime is 426787. The reversal of 426783 is 387624.

426783 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (426779) and next prime (426787).

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

It is not a de Polignac number, because 426783 - 2² = 426779 is a prime.

It is an Ulam number.

It is a Duffinian number.

426783 is strictly pandigital in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 426783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426787) 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, 10141 + ... + 10182.

It is an arithmetic number, because the mean of its divisors is an integer number (81296).

2⁴²⁶⁷⁸³ is an apocalyptic number.

426783 is a deficient number, since it is larger than the sum of its proper divisors (223585).

426783 is a wasteful number, since it uses less digits than its factorization.

426783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20333.

The product of its digits is 8064, while the sum is 30.

The square root of 426783 is about 653.2863078314. The cubic root of 426783 is about 75.2897238049.

The spelling of 426783 in words is "four hundred twenty-six thousand, seven hundred eighty-three".