3931332427 has 16 divisors (see below), whose sum is σ = 4590979200. Its totient is φ = 3328439040.

The previous prime is 3931332373. The next prime is 3931332463. The reversal of 3931332427 is 7242331393.

It is a cyclic number.

It is not a de Polignac number, because 3931332427 - 2²³ = 3922943819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3931332827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147078 + ... + 171739.

It is an arithmetic number, because the mean of its divisors is an integer number (286936200).

Almost surely, 2^3931332427 is an apocalyptic number.

3931332427 is a deficient number, since it is larger than the sum of its proper divisors (659646773).

3931332427 is a wasteful number, since it uses less digits than its factorization.

3931332427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318906.

The product of its digits is 81648, while the sum is 37.

The square root of 3931332427 is about 62700.3383324205. The cubic root of 3931332427 is about 1578.2649900647.

The spelling of 3931332427 in words is "three billion, nine hundred thirty-one million, three hundred thirty-two thousand, four hundred twenty-seven".