427828 has 6 divisors (see below), whose sum is σ = 748706. Its totient is φ = 213912.

The previous prime is 427813. The next prime is 427849. The reversal of 427828 is 828724.

It can be written as a sum of positive squares in only one way, i.e., 289444 + 138384 = 538^2 + 372^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 427828.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53475 + ... + 53482.

2⁴²⁷⁸²⁸ is an apocalyptic number.

It is an amenable number.

427828 is a deficient number, since it is larger than the sum of its proper divisors (320878).

427828 is a wasteful number, since it uses less digits than its factorization.

427828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106961 (or 106959 counting only the distinct ones).

The product of its digits is 7168, while the sum is 31.

The square root of 427828 is about 654.0856213066. The cubic root of 427828 is about 75.3511239646.

The spelling of 427828 in words is "four hundred twenty-seven thousand, eight hundred twenty-eight".