425866 has 16 divisors (see below), whose sum is σ = 768960. Its totient is φ = 172800.

The previous prime is 425861. The next prime is 425869. The reversal of 425866 is 668524.

It is not an unprimeable number, because it can be changed into a prime (425861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535 + ... + 1066.

It is an arithmetic number, because the mean of its divisors is an integer number (48060).

2⁴²⁵⁸⁶⁶ is an apocalyptic number.

425866 is a deficient number, since it is larger than the sum of its proper divisors (343094).

425866 is a wasteful number, since it uses less digits than its factorization.

425866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629.

The product of its digits is 11520, while the sum is 31.

The square root of 425866 is about 652.5840941978. The cubic root of 425866 is about 75.2357618120.

The spelling of 425866 in words is "four hundred twenty-five thousand, eight hundred sixty-six".