426493 has 4 divisors (see below), whose sum is σ = 448960. Its totient is φ = 404028.

The previous prime is 426487. The next prime is 426527. The reversal of 426493 is 394624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426493 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 (426193) 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 3 ways as a sum of consecutive naturals, for example, 11205 + ... + 11242.

It is an arithmetic number, because the mean of its divisors is an integer number (112240).

2⁴²⁶⁴⁹³ is an apocalyptic number.

It is an amenable number.

426493 is a deficient number, since it is larger than the sum of its proper divisors (22467).

426493 is a wasteful number, since it uses less digits than its factorization.

426493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22466.

The product of its digits is 5184, while the sum is 28.

The square root of 426493 is about 653.0643153626. The cubic root of 426493 is about 75.2726667624.

It can be divided in two parts, 426 and 493, that added together give a palindrome (919).

The spelling of 426493 in words is "four hundred twenty-six thousand, four hundred ninety-three".