3661394 has 16 divisors (see below), whose sum is σ = 6120576. Its totient is φ = 1628400.

The previous prime is 3661391. The next prime is 3661417. The reversal of 3661394 is 4931663.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3661394.

It is not an unprimeable number, because it can be changed into a prime (3661391) 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, 737 + ... + 2804.

It is an arithmetic number, because the mean of its divisors is an integer number (382536).

Almost surely, 2^3661394 is an apocalyptic number.

3661394 is a deficient number, since it is larger than the sum of its proper divisors (2459182).

3661394 is a wasteful number, since it uses less digits than its factorization.

3661394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601.

The product of its digits is 11664, while the sum is 32.

The square root of 3661394 is about 1913.4769400231. The cubic root of 3661394 is about 154.1282172762.

The spelling of 3661394 in words is "three million, six hundred sixty-one thousand, three hundred ninety-four".