427660 has 12 divisors (see below), whose sum is σ = 898128. Its totient is φ = 171056.

The previous prime is 427621. The next prime is 427681. The reversal of 427660 is 66724.

It is an unprimeable number.

427660 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 3 ways as a sum of consecutive naturals, for example, 10672 + ... + 10711.

It is an arithmetic number, because the mean of its divisors is an integer number (74844).

2⁴²⁷⁶⁶⁰ is an apocalyptic number.

It is an amenable number.

427660 is an abundant number, since it is smaller than the sum of its proper divisors (470468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427660 is a wasteful number, since it uses less digits than its factorization.

427660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21392 (or 21390 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 427660 is about 653.9571851429. The cubic root of 427660 is about 75.3412596841.

The spelling of 427660 in words is "four hundred twenty-seven thousand, six hundred sixty".