1806764 has 6 divisors (see below), whose sum is σ = 3161844. Its totient is φ = 903380.

The previous prime is 1806733. The next prime is 1806769. The reversal of 1806764 is 4676081.

It is a self number, because there is not a number n which added to its sum of digits gives 1806764.

It is not an unprimeable number, because it can be changed into a prime (1806769) by changing a digit.

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, 225842 + ... + 225849.

It is an arithmetic number, because the mean of its divisors is an integer number (526974).

2^1806764 is an apocalyptic number.

It is an amenable number.

1806764 is a deficient number, since it is larger than the sum of its proper divisors (1355080).

1806764 is a wasteful number, since it uses less digits than its factorization.

1806764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451695 (or 451693 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1806764 is about 1344.1592167597. The cubic root of 1806764 is about 121.7962198742.

The spelling of 1806764 in words is "one million, eight hundred six thousand, seven hundred sixty-four".