3659998 has 8 divisors (see below), whose sum is σ = 5812992. Its totient is φ = 1722336.

The previous prime is 3659993. The next prime is 3660011. The reversal of 3659998 is 8999563.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3659993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53790 + ... + 53857.

It is an arithmetic number, because the mean of its divisors is an integer number (726624).

Almost surely, 2^3659998 is an apocalyptic number.

3659998 is a deficient number, since it is larger than the sum of its proper divisors (2152994).

3659998 is a wasteful number, since it uses less digits than its factorization.

3659998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107666.

The product of its digits is 524880, while the sum is 49.

The square root of 3659998 is about 1913.1121242625. The cubic root of 3659998 is about 154.1086263460.

The spelling of 3659998 in words is "three million, six hundred fifty-nine thousand, nine hundred ninety-eight".