3791328 has 48 divisors (see below), whose sum is σ = 10107216. Its totient is φ = 1244160.

The previous prime is 3791321. The next prime is 3791339. The reversal of 3791328 is 8231973.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3791321) 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, 6738 + ... + 7278.

It is an arithmetic number, because the mean of its divisors is an integer number (210567).

Almost surely, 2^3791328 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 3791328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5053608).

3791328 is an abundant number, since it is smaller than the sum of its proper divisors (6315888).

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

3791328 is a wasteful number, since it uses less digits than its factorization.

3791328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627 (or 619 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 3791328 is about 1947.1332774107. The cubic root of 3791328 is about 155.9302778505.

The spelling of 3791328 in words is "three million, seven hundred ninety-one thousand, three hundred twenty-eight".