3886371257 has 4 divisors (see below), whose sum is σ = 3991408356. Its totient is φ = 3781334160.

The previous prime is 3886371253. The next prime is 3886371271. The reversal of 3886371257 is 7521736883.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7521736883 = 439 ⋅17133797.

It can be written as a sum of positive squares in 2 ways, for example, as 3166200361 + 720170896 = 56269^2 + 26836^2 .

It is a cyclic number.

It is not a de Polignac number, because 3886371257 - 2² = 3886371253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3886371253) 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, 52518494 + ... + 52518567.

It is an arithmetic number, because the mean of its divisors is an integer number (997852089).

Almost surely, 2^3886371257 is an apocalyptic number.

3886371257 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3886371257 is a deficient number, since it is larger than the sum of its proper divisors (105037099).

3886371257 is a wasteful number, since it uses less digits than its factorization.

3886371257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105037098.

The product of its digits is 1693440, while the sum is 50.

The square root of 3886371257 is about 62340.7672153624. The cubic root of 3886371257 is about 1572.2252320815.

The spelling of 3886371257 in words is "three billion, eight hundred eighty-six million, three hundred seventy-one thousand, two hundred fifty-seven".