4055665 has 8 divisors (see below), whose sum is σ = 4880448. Its totient is φ = 3235440.

The previous prime is 4055657. The next prime is 4055669. The reversal of 4055665 is 5665504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4055665 - 2³ = 4055657 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 (4055669) 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 7 ways as a sum of consecutive naturals, for example, 1300 + ... + 3130.

It is an arithmetic number, because the mean of its divisors is an integer number (610056).

Almost surely, 2^4055665 is an apocalyptic number.

It is an amenable number.

4055665 is a deficient number, since it is larger than the sum of its proper divisors (824783).

4055665 is a wasteful number, since it uses less digits than its factorization.

4055665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 4055665 is about 2013.8681684758. The cubic root of 4055665 is about 159.4730712556.

The spelling of 4055665 in words is "four million, fifty-five thousand, six hundred sixty-five".