425867 has 16 divisors (see below), whose sum is σ = 508032. Its totient is φ = 353280.

The previous prime is 425861. The next prime is 425869. The reversal of 425867 is 768524.

It is a cyclic number.

It is not a de Polignac number, because 425867 - 2⁴ = 425851 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 425867.

It is not an unprimeable number, because it can be changed into a prime (425861) 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 15 ways as a sum of consecutive naturals, for example, 9038 + ... + 9084.

It is an arithmetic number, because the mean of its divisors is an integer number (31752).

2⁴²⁵⁸⁶⁷ is an apocalyptic number.

425867 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

425867 is the 533-rd pentagonal number.

425867 is a deficient number, since it is larger than the sum of its proper divisors (82165).

425867 is a wasteful number, since it uses less digits than its factorization.

425867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118.

The product of its digits is 13440, while the sum is 32.

The square root of 425867 is about 652.5848603822. The cubic root of 425867 is about 75.2358207004.

The spelling of 425867 in words is "four hundred twenty-five thousand, eight hundred sixty-seven".