3643794 has 72 divisors (see below), whose sum is σ = 9959040. Its totient is φ = 942480.

The previous prime is 3643751. The next prime is 3643799. The reversal of 3643794 is 4973463.

3643794 is a `hidden beast` number, since 3 + 643 + 7 + 9 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (3643799) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15127 + ... + 15365.

It is an arithmetic number, because the mean of its divisors is an integer number (138320).

Almost surely, 2^3643794 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3643794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4979520).

3643794 is an abundant number, since it is smaller than the sum of its proper divisors (6315246).

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

3643794 is a wasteful number, since it uses less digits than its factorization.

3643794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 262 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 3643794 is about 1908.8724420453. The cubic root of 3643794 is about 153.8808602340.

The spelling of 3643794 in words is "three million, six hundred forty-three thousand, seven hundred ninety-four".