425843 has 4 divisors (see below), whose sum is σ = 464568. Its totient is φ = 387120.

The previous prime is 425839. The next prime is 425851. The reversal of 425843 is 348524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 425843 - 2² = 425839 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 425843.

It is not an unprimeable number, because it can be changed into a prime (425813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19346 + ... + 19367.

It is an arithmetic number, because the mean of its divisors is an integer number (116142).

2⁴²⁵⁸⁴³ is an apocalyptic number.

425843 is a deficient number, since it is larger than the sum of its proper divisors (38725).

425843 is a wasteful number, since it uses less digits than its factorization.

425843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38724.

The product of its digits is 3840, while the sum is 26.

The square root of 425843 is about 652.5664717100. The cubic root of 425843 is about 75.2344073534.

It can be divided in two parts, 42 and 5843, that added together give a palindrome (5885).

The spelling of 425843 in words is "four hundred twenty-five thousand, eight hundred forty-three".