1147828 has 24 divisors (see below), whose sum is σ = 2308320. Its totient is φ = 493920.

The previous prime is 1147819. The next prime is 1147841. The reversal of 1147828 is 8287411.

It is a self number, because there is not a number n which added to its sum of digits gives 1147828.

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, 150 + ... + 1522.

It is an arithmetic number, because the mean of its divisors is an integer number (96180).

2^1147828 is an apocalyptic number.

It is an amenable number.

1147828 is an abundant number, since it is smaller than the sum of its proper divisors (1160492).

1147828 is a wasteful number, since it uses less digits than its factorization.

1147828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407 (or 1405 counting only the distinct ones).

The product of its digits is 3584, while the sum is 31.

The square root of 1147828 is about 1071.3673506319. The cubic root of 1147828 is about 104.7029548580.

The spelling of 1147828 in words is "one million, one hundred forty-seven thousand, eight hundred twenty-eight".