3851812 has 12 divisors (see below), whose sum is σ = 6958336. Its totient is φ = 1863720.

The previous prime is 3851807. The next prime is 3851819. The reversal of 3851812 is 2181583.

It is not an unprimeable number, because it can be changed into a prime (3851819) 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, 15408 + ... + 15655.

Almost surely, 2^3851812 is an apocalyptic number.

It is an amenable number.

3851812 is a deficient number, since it is larger than the sum of its proper divisors (3106524).

3851812 is a wasteful number, since it uses less digits than its factorization.

3851812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31098 (or 31096 counting only the distinct ones).

The product of its digits is 1920, while the sum is 28.

The square root of 3851812 is about 1962.6033730736. The cubic root of 3851812 is about 156.7551052402.

It can be divided in two parts, 385 and 1812, that added together give a cube (2197 = 13³).

The spelling of 3851812 in words is "three million, eight hundred fifty-one thousand, eight hundred twelve".