3871899 has 12 divisors (see below), whose sum is σ = 5616312. Its totient is φ = 2570400.

The previous prime is 3871883. The next prime is 3871909. The reversal of 3871899 is 9981783.

It is not a de Polignac number, because 3871899 - 2⁴ = 3871883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3871499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1764 + ... + 3294.

It is an arithmetic number, because the mean of its divisors is an integer number (468026).

Almost surely, 2^3871899 is an apocalyptic number.

3871899 is a deficient number, since it is larger than the sum of its proper divisors (1744413).

3871899 is a wasteful number, since it uses less digits than its factorization.

3871899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818 (or 1815 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 3871899 is about 1967.7141560704. The cubic root of 3871899 is about 157.0271228514.

The spelling of 3871899 in words is "three million, eight hundred seventy-one thousand, eight hundred ninety-nine".