3668863 has 4 divisors (see below), whose sum is σ = 4002408. Its totient is φ = 3335320.

The previous prime is 3668857. The next prime is 3668869. The reversal of 3668863 is 3688663.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3668857) and next prime (3668869).

It is a cyclic number.

It is not a de Polignac number, because 3668863 - 2²¹ = 1571711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3668869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166756 + ... + 166777.

It is an arithmetic number, because the mean of its divisors is an integer number (1000602).

Almost surely, 2^3668863 is an apocalyptic number.

3668863 is a deficient number, since it is larger than the sum of its proper divisors (333545).

3668863 is a wasteful number, since it uses less digits than its factorization.

3668863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333544.

The product of its digits is 124416, while the sum is 40.

The square root of 3668863 is about 1915.4276284945. The cubic root of 3668863 is about 154.2329498599.

It can be divided in two parts, 366 and 8863, that added together give a palindrome (9229).

The spelling of 3668863 in words is "three million, six hundred sixty-eight thousand, eight hundred sixty-three".