3655994 has 8 divisors (see below), whose sum is σ = 5577120. Its totient is φ = 1796956.

The previous prime is 3655987. The next prime is 3656017. The reversal of 3655994 is 4995563.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15374 + ... + 15609.

It is an arithmetic number, because the mean of its divisors is an integer number (697140).

Almost surely, 2^3655994 is an apocalyptic number.

3655994 is a deficient number, since it is larger than the sum of its proper divisors (1921126).

3655994 is a wasteful number, since it uses less digits than its factorization.

3655994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31044.

The product of its digits is 145800, while the sum is 41.

The square root of 3655994 is about 1912.0653754514. The cubic root of 3655994 is about 154.0524080919.

The spelling of 3655994 in words is "three million, six hundred fifty-five thousand, nine hundred ninety-four".