3891324 has 36 divisors (see below), whose sum is σ = 9507176. Its totient is φ = 1238688.

The previous prime is 3891323. The next prime is 3891331. The reversal of 3891324 is 4231983.

It is a junction number, because it is equal to n+sod(n) for n = 3891291 and 3891300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3891323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6042 + ... + 6654.

Almost surely, 2^3891324 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 3891324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4753588).

3891324 is an abundant number, since it is smaller than the sum of its proper divisors (5615852).

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

3891324 is a wasteful number, since it uses less digits than its factorization.

3891324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 641 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 3891324 is about 1972.6439111000. The cubic root of 3891324 is about 157.2892823306.

The spelling of 3891324 in words is "three million, eight hundred ninety-one thousand, three hundred twenty-four".