3908859 has 4 divisors (see below), whose sum is σ = 5211816. Its totient is φ = 2605904.

The previous prime is 3908857. The next prime is 3908867. The reversal of 3908859 is 9588093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9588093 = 3 ⋅3196031.

It is a cyclic number.

It is not a de Polignac number, because 3908859 - 2¹ = 3908857 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 3908859.

It is not an unprimeable number, because it can be changed into a prime (3908857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651474 + ... + 651479.

It is an arithmetic number, because the mean of its divisors is an integer number (1302954).

Almost surely, 2^3908859 is an apocalyptic number.

3908859 is a deficient number, since it is larger than the sum of its proper divisors (1302957).

3908859 is a wasteful number, since it uses less digits than its factorization.

3908859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302956.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 3908859 is about 1977.0834580260. The cubic root of 3908859 is about 157.5251861964.

The spelling of 3908859 in words is "three million, nine hundred eight thousand, eight hundred fifty-nine".