425827 has 4 divisors (see below), whose sum is σ = 427680. Its totient is φ = 423976.

The previous prime is 425819. The next prime is 425837. The reversal of 425827 is 728524.

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 425827 - 2³ = 425819 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425795 and 425804.

It is not an unprimeable number, because it can be changed into a prime (425837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523 + ... + 1060.

It is an arithmetic number, because the mean of its divisors is an integer number (106920).

2⁴²⁵⁸²⁷ is an apocalyptic number.

425827 is a deficient number, since it is larger than the sum of its proper divisors (1853).

425827 is a wasteful number, since it uses less digits than its factorization.

425827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852.

The product of its digits is 4480, while the sum is 28.

The square root of 425827 is about 652.5542123073. The cubic root of 425827 is about 75.2334650925.

The spelling of 425827 in words is "four hundred twenty-five thousand, eight hundred twenty-seven".