3813000 has 128 divisors (see below), whose sum is σ = 12579840. Its totient is φ = 960000.

The previous prime is 3812989. The next prime is 3813001. The reversal of 3813000 is 3183.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (3813001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92980 + ... + 93020.

It is an arithmetic number, because the mean of its divisors is an integer number (98280).

Almost surely, 2^3813000 is an apocalyptic number.

3813000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3813000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6289920).

3813000 is an abundant number, since it is smaller than the sum of its proper divisors (8766840).

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

3813000 is a wasteful number, since it uses less digits than its factorization.

3813000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3813000 is about 1952.6904516589. The cubic root of 3813000 is about 156.2268232290.

Adding to 3813000 its reverse (3183), we get a palindrome (3816183).

The spelling of 3813000 in words is "three million, eight hundred thirteen thousand".