426993 has 8 divisors (see below), whose sum is σ = 650688. Its totient is φ = 243984.

The previous prime is 426973. The next prime is 426997. The reversal of 426993 is 399624.

426993 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 426993 - 2⁸ = 426737 is a prime.

426993 is strictly pandigital in base 7.

It is not an unprimeable number, because it can be changed into a prime (426997) 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, 10146 + ... + 10187.

It is an arithmetic number, because the mean of its divisors is an integer number (81336).

2⁴²⁶⁹⁹³ is an apocalyptic number.

It is an amenable number.

426993 is a deficient number, since it is larger than the sum of its proper divisors (223695).

426993 is a wasteful number, since it uses less digits than its factorization.

426993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20343.

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

The square root of 426993 is about 653.4470139193. The cubic root of 426993 is about 75.3020706333.

The spelling of 426993 in words is "four hundred twenty-six thousand, nine hundred ninety-three".