3661694 has 8 divisors (see below), whose sum is σ = 5519208. Its totient is φ = 1821960.

The previous prime is 3661673. The next prime is 3661703. The reversal of 3661694 is 4961663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×3661694³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3917 + ... + 4760.

It is an arithmetic number, because the mean of its divisors is an integer number (689901).

Almost surely, 2^3661694 is an apocalyptic number.

3661694 is a deficient number, since it is larger than the sum of its proper divisors (1857514).

3661694 is a wasteful number, since it uses less digits than its factorization.

3661694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8890.

The product of its digits is 23328, while the sum is 35.

The square root of 3661694 is about 1913.5553297462. Note that the first 3 decimals coincide. The cubic root of 3661694 is about 154.1324267114.

The spelling of 3661694 in words is "three million, six hundred sixty-one thousand, six hundred ninety-four".