3618243 has 16 divisors (see below), whose sum is σ = 5546400. Its totient is φ = 2328480.

The previous prime is 3618239. The next prime is 3618247. The reversal of 3618243 is 3428163.

It is a happy number.

3618243 is a `hidden beast` number, since 3 + 618 + 2 + 43 = 666.

It is an interprime number because it is at equal distance from previous prime (3618239) and next prime (3618247).

It is not a de Polignac number, because 3618243 - 2² = 3618239 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3618247) 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 15 ways as a sum of consecutive naturals, for example, 1528 + ... + 3093.

It is an arithmetic number, because the mean of its divisors is an integer number (346650).

Almost surely, 2^3618243 is an apocalyptic number.

3618243 is a deficient number, since it is larger than the sum of its proper divisors (1928157).

3618243 is a wasteful number, since it uses less digits than its factorization.

3618243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4659 (or 4653 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 3618243 is about 1902.1679736553. The cubic root of 3618243 is about 153.5203352759.

The spelling of 3618243 in words is "three million, six hundred eighteen thousand, two hundred forty-three".