3618387 has 6 divisors (see below), whose sum is σ = 5226572. Its totient is φ = 2412252.

The previous prime is 3618347. The next prime is 3618397. The reversal of 3618387 is 7838163.

3618387 is a `hidden beast` number, since 3 + 618 + 38 + 7 = 666.

It is not a de Polignac number, because 3618387 - 2⁶ = 3618323 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3618317) 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 5 ways as a sum of consecutive naturals, for example, 201013 + ... + 201030.

Almost surely, 2^3618387 is an apocalyptic number.

3618387 is a deficient number, since it is larger than the sum of its proper divisors (1608185).

3618387 is a wasteful number, since it uses less digits than its factorization.

3618387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402049 (or 402046 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 3618387 is about 1902.2058248255. The cubic root of 3618387 is about 153.5223718661.

It can be divided in two parts, 3618 and 387, that added together give a triangular number (4005 = T₈₉).

The spelling of 3618387 in words is "three million, six hundred eighteen thousand, three hundred eighty-seven".