3871365 has 16 divisors (see below), whose sum is σ = 6297216. Its totient is φ = 2030400.

The previous prime is 3871363. The next prime is 3871381. The reversal of 3871365 is 5631783.

It is a happy number.

It is not a de Polignac number, because 3871365 - 2¹ = 3871363 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 8⁷ + 7⁴ + 1 + 3¹³ + 6³ + 5³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1201 + ... + 3030.

It is an arithmetic number, because the mean of its divisors is an integer number (393576).

Almost surely, 2^3871365 is an apocalyptic number.

It is an amenable number.

3871365 is a deficient number, since it is larger than the sum of its proper divisors (2425851).

3871365 is a wasteful number, since it uses less digits than its factorization.

3871365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4300.

The product of its digits is 15120, while the sum is 33.

The square root of 3871365 is about 1967.5784609514. The cubic root of 3871365 is about 157.0199036256.

The spelling of 3871365 in words is "three million, eight hundred seventy-one thousand, three hundred sixty-five".