3871930 has 16 divisors (see below), whose sum is σ = 7074720. Its totient is φ = 1525392.

The previous prime is 3871921. The next prime is 3871961. The reversal of 3871930 is 391783.

It is a junction number, because it is equal to n+sod(n) for n = 3871892 and 3871901.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2220 + ... + 3559.

It is an arithmetic number, because the mean of its divisors is an integer number (442170).

Almost surely, 2^3871930 is an apocalyptic number.

3871930 is a deficient number, since it is larger than the sum of its proper divisors (3202790).

3871930 is a wasteful number, since it uses less digits than its factorization.

3871930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5853.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 3871930 is about 1967.7220332151. The cubic root of 3871930 is about 157.0275419246.

The spelling of 3871930 in words is "three million, eight hundred seventy-one thousand, nine hundred thirty".