4663665 has 24 divisors (see below), whose sum is σ = 8305128. Its totient is φ = 2419200.

The previous prime is 4663657. The next prime is 4663691. The reversal of 4663665 is 5663664.

It can be written as a sum of positive squares in 4 ways, for example, as 1292769 + 3370896 = 1137^2 + 1836^2 .

It is not a de Polignac number, because 4663665 - 2³ = 4663657 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 265 + ... + 3065.

It is an arithmetic number, because the mean of its divisors is an integer number (346047).

Almost surely, 2^4663665 is an apocalyptic number.

4663665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4663665 is a deficient number, since it is larger than the sum of its proper divisors (3641463).

4663665 is a wasteful number, since it uses less digits than its factorization.

4663665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849 (or 2846 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 4663665 is about 2159.5520368817. The cubic root of 4663665 is about 167.0740943158.

Subtracting 4663665 from its reverse (5663664), we obtain a palindrome (999999).

The spelling of 4663665 in words is "four million, six hundred sixty-three thousand, six hundred sixty-five".