3871393 has 4 divisors (see below), whose sum is σ = 4099140. Its totient is φ = 3643648.

The previous prime is 3871391. The next prime is 3871397. The reversal of 3871393 is 3931783.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2934369 + 937024 = 1713^2 + 968^2 .

It is a cyclic number.

It is not a de Polignac number, because 3871393 - 2¹ = 3871391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3871391) 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, 113848 + ... + 113881.

It is an arithmetic number, because the mean of its divisors is an integer number (1024785).

Almost surely, 2^3871393 is an apocalyptic number.

It is an amenable number.

3871393 is a deficient number, since it is larger than the sum of its proper divisors (227747).

3871393 is a wasteful number, since it uses less digits than its factorization.

3871393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227746.

The product of its digits is 13608, while the sum is 34.

The square root of 3871393 is about 1967.5855762838. The cubic root of 3871393 is about 157.0202821783.

The spelling of 3871393 in words is "three million, eight hundred seventy-one thousand, three hundred ninety-three".