3870859 has 4 divisors (see below), whose sum is σ = 3875104. Its totient is φ = 3866616.

The previous prime is 3870847. The next prime is 3870863. The reversal of 3870859 is 9580783.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3870859 - 2⁵ = 3870827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3870869) 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, 132 + ... + 2785.

It is an arithmetic number, because the mean of its divisors is an integer number (968776).

Almost surely, 2^3870859 is an apocalyptic number.

3870859 is a deficient number, since it is larger than the sum of its proper divisors (4245).

3870859 is a wasteful number, since it uses less digits than its factorization.

3870859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4244.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 3870859 is about 1967.4498722966. The cubic root of 3870859 is about 157.0130623235.

The spelling of 3870859 in words is "three million, eight hundred seventy thousand, eight hundred fifty-nine".