425789 has 8 divisors (see below), whose sum is σ = 524160. Its totient is φ = 336816.

The previous prime is 425783. The next prime is 425791. The reversal of 425789 is 987524.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 425789 - 2⁸ = 425533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425783) 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, 2249 + ... + 2430.

It is an arithmetic number, because the mean of its divisors is an integer number (65520).

2⁴²⁵⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

425789 is a deficient number, since it is larger than the sum of its proper divisors (98371).

425789 is a wasteful number, since it uses less digits than its factorization.

425789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4699.

The product of its digits is 20160, while the sum is 35.

The square root of 425789 is about 652.5250953029. The cubic root of 425789 is about 75.2312271283.

It can be divided in two parts, 4257 and 89, that multiplied together give a palindrome (378873).

The spelling of 425789 in words is "four hundred twenty-five thousand, seven hundred eighty-nine".