427827856 has 15 divisors (see below), whose sum is σ = 829076803. Its totient is φ = 213872560.

The previous prime is 427827817. The next prime is 427827857. The reversal of 427827856 is 658728724.

The square root of 427827856 is 20684.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427827857) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 80151 + ... + 85321.

Almost surely, 2^427827856 is an apocalyptic number.

427827856 is the 20684-th square number.

It is an amenable number.

427827856 is a deficient number, since it is larger than the sum of its proper divisors (401248947).

427827856 is an frugal number, since it uses more digits than its factorization.

427827856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10350 (or 5173 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 49.

The cubic root of 427827856 is about 753.5111551057.

Multiplying 427827856 by its sum of digits (49), we get a square (20963564944 = 144788²).

The spelling of 427827856 in words is "four hundred twenty-seven million, eight hundred twenty-seven thousand, eight hundred fifty-six".