425986 has 24 divisors (see below), whose sum is σ = 751536. Its totient is φ = 179520.

The previous prime is 425977. The next prime is 425987. The reversal of 425986 is 689524.

It is a happy number.

425986 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (425987) by changing a digit.

425986 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6325 + ... + 6391.

It is an arithmetic number, because the mean of its divisors is an integer number (31314).

425986 is a Friedman number, since it can be written as (9/6+5)*4^8+2, using all its digits and the basic arithmetic operations.

2⁴²⁵⁹⁸⁶ is an apocalyptic number.

425986 is a deficient number, since it is larger than the sum of its proper divisors (325550).

425986 is a wasteful number, since it uses less digits than its factorization.

425986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 97 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 425986 is about 652.6760298954. The cubic root of 425986 is about 75.2428277620.

The spelling of 425986 in words is "four hundred twenty-five thousand, nine hundred eighty-six".