3900812 has 12 divisors (see below), whose sum is σ = 6972000. Its totient is φ = 1908816.

The previous prime is 3900779. The next prime is 3900817. The reversal of 3900812 is 2180093.

3900812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3900817) 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 in 3 ways as a sum of consecutive naturals, for example, 10187 + ... + 10562.

It is an arithmetic number, because the mean of its divisors is an integer number (581000).

Almost surely, 2^3900812 is an apocalyptic number.

It is an amenable number.

3900812 is a deficient number, since it is larger than the sum of its proper divisors (3071188).

3900812 is a wasteful number, since it uses less digits than its factorization.

3900812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20800 (or 20798 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 3900812 is about 1975.0473412048. The cubic root of 3900812 is about 157.4170151569.

The spelling of 3900812 in words is "three million, nine hundred thousand, eight hundred twelve".