4005859 has 16 divisors (see below), whose sum is σ = 4767840. Its totient is φ = 3317760.

The previous prime is 4005847. The next prime is 4005889. The reversal of 4005859 is 9585004.

4005859 = 187² + 188² + ... + 264².

It is a cyclic number.

It is not a de Polignac number, because 4005859 - 2⁹ = 4005347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4005859.

It is not an unprimeable number, because it can be changed into a prime (4005839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15459 + ... + 15715.

It is an arithmetic number, because the mean of its divisors is an integer number (297990).

Almost surely, 2^4005859 is an apocalyptic number.

4005859 is a deficient number, since it is larger than the sum of its proper divisors (761981).

4005859 is a wasteful number, since it uses less digits than its factorization.

4005859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 4005859 is about 2001.4642140193. The cubic root of 4005859 is about 158.8175722422.

The spelling of 4005859 in words is "four million, five thousand, eight hundred fifty-nine".