3820812 has 24 divisors (see below), whose sum is σ = 9203712. Its totient is φ = 1232400.

The previous prime is 3820811. The next prime is 3820813. The reversal of 3820812 is 2180283.

It is an interprime number because it is at equal distance from previous prime (3820811) and next prime (3820813).

It is not an unprimeable number, because it can be changed into a prime (3820811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4764 + ... + 5507.

It is an arithmetic number, because the mean of its divisors is an integer number (383488).

Almost surely, 2^3820812 is an apocalyptic number.

It is an amenable number.

3820812 is an abundant number, since it is smaller than the sum of its proper divisors (5382900).

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

3820812 is a wasteful number, since it uses less digits than its factorization.

3820812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10309 (or 10307 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 3820812 is about 1954.6897452025. The cubic root of 3820812 is about 156.3334419384. Note that the first 3 decimals are identical.

The spelling of 3820812 in words is "three million, eight hundred twenty thousand, eight hundred twelve".