3493784 has 32 divisors (see below), whose sum is σ = 7581600. Its totient is φ = 1478400.

The previous prime is 3493783. The next prime is 3493811. The reversal of 3493784 is 4873943.

3493784 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

3493784 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3493781) 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, 4634 + ... + 5334.

It is an arithmetic number, because the mean of its divisors is an integer number (236925).

Almost surely, 2^3493784 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 3493784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3790800).

3493784 is an abundant number, since it is smaller than the sum of its proper divisors (4087816).

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

3493784 is a wasteful number, since it uses less digits than its factorization.

3493784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 799 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 3493784 is about 1869.1666592361. The cubic root of 3493784 is about 151.7395122969.

The spelling of 3493784 in words is "three million, four hundred ninety-three thousand, seven hundred eighty-four".