3913812 has 96 divisors (see below), whose sum is σ = 12042240. Its totient is φ = 1075680.

The previous prime is 3913807. The next prime is 3913837. The reversal of 3913812 is 2183193.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23353 + ... + 23519.

It is an arithmetic number, because the mean of its divisors is an integer number (125440).

Almost surely, 2^3913812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3913812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6021120).

3913812 is an abundant number, since it is smaller than the sum of its proper divisors (8128428).

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

3913812 is a wasteful number, since it uses less digits than its factorization.

3913812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 210 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 3913812 is about 1978.3356641379. The cubic root of 3913812 is about 157.5916926402.

The spelling of 3913812 in words is "three million, nine hundred thirteen thousand, eight hundred twelve".