425823 has 4 divisors (see below), whose sum is σ = 567768. Its totient is φ = 283880.

The previous prime is 425819. The next prime is 425837. The reversal of 425823 is 328524.

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 425823 - 2² = 425819 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 425793 and 425802.

It is a congruent number.

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, 70968 + ... + 70973.

It is an arithmetic number, because the mean of its divisors is an integer number (141942).

2⁴²⁵⁸²³ is an apocalyptic number.

425823 is a deficient number, since it is larger than the sum of its proper divisors (141945).

425823 is a wasteful number, since it uses less digits than its factorization.

425823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141944.

The product of its digits is 1920, while the sum is 24.

The square root of 425823 is about 652.5511474206. The cubic root of 425823 is about 75.2332295236.

The spelling of 425823 in words is "four hundred twenty-five thousand, eight hundred twenty-three".