1047808 has 18 divisors (see below), whose sum is σ = 2092034. Its totient is φ = 523776.

The previous prime is 1047779. The next prime is 1047821. The reversal of 1047808 is 8087401.

It can be written as a sum of positive squares in only one way, i.e., 861184 + 186624 = 928^2 + 432^2 .

It is an Ulam number.

It is a nialpdrome in base 4 and base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1791 + ... + 2302.

2^1047808 is an apocalyptic number.

It is an amenable number.

1047808 is a deficient number, since it is larger than the sum of its proper divisors (1044226).

1047808 is an frugal number, since it uses more digits than its factorization.

1047808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4109 (or 4095 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1047808 is about 1023.6249313103. The cubic root of 1047808 is about 101.5688581266.

The spelling of 1047808 in words is "one million, forty-seven thousand, eight hundred eight".