3927968131 has 4 divisors (see below), whose sum is σ = 3928355200. Its totient is φ = 3927581064.

The previous prime is 3927968117. The next prime is 3927968203. The reversal of 3927968131 is 1318697293.

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

It is a cyclic number.

It is not a de Polignac number, because 3927968131 - 2¹⁹ = 3927443843 is a prime.

It is a super-2 number, since 2×3927968131² = 30857867276303266322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3927968431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177891 + ... + 198748.

It is an arithmetic number, because the mean of its divisors is an integer number (982088800).

Almost surely, 2^3927968131 is an apocalyptic number.

3927968131 is a deficient number, since it is larger than the sum of its proper divisors (387069).

3927968131 is a wasteful number, since it uses less digits than its factorization.

3927968131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387068.

The product of its digits is 489888, while the sum is 49.

The square root of 3927968131 is about 62673.5042182899. The cubic root of 3927968131 is about 1577.8146536928.

The spelling of 3927968131 in words is "three billion, nine hundred twenty-seven million, nine hundred sixty-eight thousand, one hundred thirty-one".