3871854 has 32 divisors (see below), whose sum is σ = 9834240. Its totient is φ = 1106136.

The previous prime is 3871841. The next prime is 3871871. The reversal of 3871854 is 4581783.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4744 + ... + 5499.

It is an arithmetic number, because the mean of its divisors is an integer number (307320).

Almost surely, 2^3871854 is an apocalyptic number.

3871854 is an abundant number, since it is smaller than the sum of its proper divisors (5962386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3871854 is a wasteful number, since it uses less digits than its factorization.

3871854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10261 (or 10255 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 3871854 is about 1967.7027214496. The cubic root of 3871854 is about 157.0265145152.

The spelling of 3871854 in words is "three million, eight hundred seventy-one thousand, eight hundred fifty-four".