3633986 has 8 divisors (see below), whose sum is σ = 5459520. Its totient is φ = 1814148.

The previous prime is 3633983. The next prime is 3633991. The reversal of 3633986 is 6893363.

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

It is not an unprimeable number, because it can be changed into a prime (3633983) 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, 995 + ... + 2873.

It is an arithmetic number, because the mean of its divisors is an integer number (682440).

Almost surely, 2^3633986 is an apocalyptic number.

3633986 is a deficient number, since it is larger than the sum of its proper divisors (1825534).

3633986 is a wasteful number, since it uses less digits than its factorization.

3633986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848.

The product of its digits is 69984, while the sum is 38.

The square root of 3633986 is about 1906.3016550378. The cubic root of 3633986 is about 153.7426691373.

The spelling of 3633986 in words is "three million, six hundred thirty-three thousand, nine hundred eighty-six".