4321655 has 16 divisors (see below), whose sum is σ = 5914944. Its totient is φ = 3002880.

The previous prime is 4321643. The next prime is 4321657. The reversal of 4321655 is 5561234.

It is not a de Polignac number, because 4321655 - 2¹⁴ = 4305271 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 (4321657) 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, 851 + ... + 3060.

It is an arithmetic number, because the mean of its divisors is an integer number (369684).

Almost surely, 2^4321655 is an apocalyptic number.

4321655 is a deficient number, since it is larger than the sum of its proper divisors (1593289).

4321655 is a wasteful number, since it uses less digits than its factorization.

4321655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946.

The product of its digits is 3600, while the sum is 26.

The square root of 4321655 is about 2078.8590620819. The cubic root of 4321655 is about 162.8858523087.

Adding to 4321655 its reverse (5561234), we get a palindrome (9882889).

The spelling of 4321655 in words is "four million, three hundred twenty-one thousand, six hundred fifty-five".