3871357 has 4 divisors (see below), whose sum is σ = 4424416. Its totient is φ = 3318300.

The previous prime is 3871339. The next prime is 3871363. The reversal of 3871357 is 7531783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3871357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276519 + ... + 276532.

It is an arithmetic number, because the mean of its divisors is an integer number (1106104).

Almost surely, 2^3871357 is an apocalyptic number.

It is an amenable number.

3871357 is a deficient number, since it is larger than the sum of its proper divisors (553059).

3871357 is an equidigital number, since it uses as much as digits as its factorization.

3871357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553058.

The product of its digits is 17640, while the sum is 34.

The square root of 3871357 is about 1967.5764279946. The cubic root of 3871357 is about 157.0197954674.

The spelling of 3871357 in words is "three million, eight hundred seventy-one thousand, three hundred fifty-seven".