1806884 has 12 divisors (see below), whose sum is σ = 3179484. Its totient is φ = 898464.

The previous prime is 1806877. The next prime is 1806887. The reversal of 1806884 is 4886081.

It can be written as a sum of positive squares in 2 ways, for example, as 1276900 + 529984 = 1130^2 + 728^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1806887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359 + ... + 1934.

It is an arithmetic number, because the mean of its divisors is an integer number (264957).

2^1806884 is an apocalyptic number.

It is an amenable number.

1806884 is a deficient number, since it is larger than the sum of its proper divisors (1372600).

1806884 is a wasteful number, since it uses less digits than its factorization.

1806884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494 (or 2492 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 1806884 is about 1344.2038535877. The cubic root of 1806884 is about 121.7989162645.

The spelling of 1806884 in words is "one million, eight hundred six thousand, eight hundred eighty-four".