3605998 has 8 divisors (see below), whose sum is σ = 5900760. Its totient is φ = 1639080.

The previous prime is 3605969. The next prime is 3605999. The reversal of 3605998 is 8995063.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3605998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3605999) 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 in 3 ways as a sum of consecutive naturals, for example, 81933 + ... + 81976.

It is an arithmetic number, because the mean of its divisors is an integer number (737595).

Almost surely, 2^3605998 is an apocalyptic number.

3605998 is a deficient number, since it is larger than the sum of its proper divisors (2294762).

3605998 is a wasteful number, since it uses less digits than its factorization.

3605998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163922.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 3605998 is about 1898.9465500640. The cubic root of 3605998 is about 153.3469563616.

The spelling of 3605998 in words is "three million, six hundred five thousand, nine hundred ninety-eight".