427764 has 24 divisors (see below), whose sum is σ = 1022560. Its totient is φ = 139104.

The previous prime is 427751. The next prime is 427781. The reversal of 427764 is 467724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102 + ... + 930.

2⁴²⁷⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

427764 is an abundant number, since it is smaller than the sum of its proper divisors (594796).

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

427764 is a wasteful number, since it uses less digits than its factorization.

427764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 877 counting only the distinct ones).

The product of its digits is 9408, while the sum is 30.

The square root of 427764 is about 654.0366962182. The cubic root of 427764 is about 75.3473664480.

The spelling of 427764 in words is "four hundred twenty-seven thousand, seven hundred sixty-four".