3728871 has 12 divisors (see below), whose sum is σ = 5407272. Its totient is φ = 2476176.

The previous prime is 3728867. The next prime is 3728873. The reversal of 3728871 is 1788273.

It is not a de Polignac number, because 3728871 - 2² = 3728867 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728873) 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, 2200 + ... + 3506.

It is an arithmetic number, because the mean of its divisors is an integer number (450606).

Almost surely, 2^3728871 is an apocalyptic number.

3728871 is a deficient number, since it is larger than the sum of its proper divisors (1678401).

3728871 is a wasteful number, since it uses less digits than its factorization.

3728871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630 (or 1627 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 3728871 is about 1931.0284824414. The cubic root of 3728871 is about 155.0692857084.

The spelling of 3728871 in words is "three million, seven hundred twenty-eight thousand, eight hundred seventy-one".