3684987 has 8 divisors (see below), whose sum is σ = 5459280. Its totient is φ = 2456640.

The previous prime is 3684977. The next prime is 3685007. The reversal of 3684987 is 7894863.

It is a happy number.

It is not a de Polignac number, because 3684987 - 2⁷ = 3684859 is a prime.

It is a d-powerful number, because it can be written as 3³ + 6⁵ + 8 + 4¹⁰ + 9⁶ + 8⁷ + 7 .

3684987 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3684977) 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 7 ways as a sum of consecutive naturals, for example, 68214 + ... + 68267.

It is an arithmetic number, because the mean of its divisors is an integer number (682410).

Almost surely, 2^3684987 is an apocalyptic number.

3684987 is a deficient number, since it is larger than the sum of its proper divisors (1774293).

3684987 is a wasteful number, since it uses less digits than its factorization.

3684987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136490 (or 136484 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 3684987 is about 1919.6319959826. The cubic root of 3684987 is about 154.4585617967.

The spelling of 3684987 in words is "three million, six hundred eighty-four thousand, nine hundred eighty-seven".