425723 has 6 divisors (see below), whose sum is σ = 440892. Its totient is φ = 411060.

The previous prime is 425713. The next prime is 425779. The reversal of 425723 is 327524.

It is not a de Polignac number, because 425723 - 2¹⁶ = 360187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 740 + ... + 1182.

It is an arithmetic number, because the mean of its divisors is an integer number (73482).

2⁴²⁵⁷²³ is an apocalyptic number.

425723 is a deficient number, since it is larger than the sum of its proper divisors (15169).

425723 is an equidigital number, since it uses as much as digits as its factorization.

425723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 474 counting only the distinct ones).

The product of its digits is 1680, while the sum is 23.

The square root of 425723 is about 652.4745205753. The cubic root of 425723 is about 75.2273398214.

The spelling of 425723 in words is "four hundred twenty-five thousand, seven hundred twenty-three".