3938871715 has 8 divisors (see below), whose sum is σ = 4751394048. Its totient is φ = 3134598720.

The previous prime is 3938871709. The next prime is 3938871721. The reversal of 3938871715 is 5171788393.

It is an interprime number because it is at equal distance from previous prime (3938871709) and next prime (3938871721).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3938871715 - 2¹⁷ = 3938740643 is a prime.

It is a super-3 number, since 3×3938871715³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2061282 + ... + 2063191.

It is an arithmetic number, because the mean of its divisors is an integer number (593924256).

Almost surely, 2^3938871715 is an apocalyptic number.

3938871715 is a deficient number, since it is larger than the sum of its proper divisors (812522333).

3938871715 is a wasteful number, since it uses less digits than its factorization.

3938871715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4124669.

The product of its digits is 1270080, while the sum is 52.

The square root of 3938871715 is about 62760.4311250329. The cubic root of 3938871715 is about 1579.2732483934.

The spelling of 3938871715 in words is "three billion, nine hundred thirty-eight million, eight hundred seventy-one thousand, seven hundred fifteen".