3958812 has 72 divisors (see below), whose sum is σ = 11771760. Its totient is φ = 1105920.

The previous prime is 3958811. The next prime is 3958813. The reversal of 3958812 is 2188593.

It is an interprime number because it is at equal distance from previous prime (3958811) and next prime (3958813).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3958811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4764 + ... + 5532.

Almost surely, 2^3958812 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 3958812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5885880).

3958812 is an abundant number, since it is smaller than the sum of its proper divisors (7812948).

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

3958812 is a wasteful number, since it uses less digits than its factorization.

3958812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 798 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 3958812 is about 1989.6763555915. The cubic root of 3958812 is about 158.1933753672.

The spelling of 3958812 in words is "three million, nine hundred fifty-eight thousand, eight hundred twelve".