3121804 has 12 divisors (see below), whose sum is σ = 6243664. Its totient is φ = 1337904.

The previous prime is 3121771. The next prime is 3121817. The reversal of 3121804 is 4081213.

3121804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

3121804 is an admirable 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 in 3 ways as a sum of consecutive naturals, for example, 55719 + ... + 55774.

Almost surely, 2^3121804 is an apocalyptic number.

It is an amenable number.

3121804 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3121804 is a wasteful number, since it uses less digits than its factorization.

3121804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111504 (or 111502 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 3121804 is about 1766.8627564132. The cubic root of 3121804 is about 146.1510290529.

It can be divided in two parts, 312 and 1804, that added together give a square (2116 = 46²).

The spelling of 3121804 in words is "three million, one hundred twenty-one thousand, eight hundred four".