3659918 has 4 divisors (see below), whose sum is σ = 5489880. Its totient is φ = 1829958.

The previous prime is 3659917. The next prime is 3659923. The reversal of 3659918 is 8199563.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3659917) by changing a digit.

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 as a sum of consecutive naturals, namely, 914978 + ... + 914981.

It is an arithmetic number, because the mean of its divisors is an integer number (1372470).

Almost surely, 2^3659918 is an apocalyptic number.

3659918 is a deficient number, since it is larger than the sum of its proper divisors (1829962).

3659918 is a wasteful number, since it uses less digits than its factorization.

3659918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829961.

The product of its digits is 58320, while the sum is 41.

The square root of 3659918 is about 1913.0912158075. The cubic root of 3659918 is about 154.1075035057.

The spelling of 3659918 in words is "three million, six hundred fifty-nine thousand, nine hundred eighteen".