3928031109 has 12 divisors (see below), whose sum is σ = 5737574700. Its totient is φ = 2589263424.

The previous prime is 3928031099. The next prime is 3928031119. The reversal of 3928031109 is 9011308293.

It is an interprime number because it is at equal distance from previous prime (3928031099) and next prime (3928031119).

It can be written as a sum of positive squares in 2 ways, for example, as 635796225 + 3292234884 = 25215^2 + 57378^2 .

It is not a de Polignac number, because 3928031109 - 2⁵ = 3928031077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928031119) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2451154 + ... + 2452755.

It is an arithmetic number, because the mean of its divisors is an integer number (478131225).

Almost surely, 2^3928031109 is an apocalyptic number.

It is an amenable number.

3928031109 is a deficient number, since it is larger than the sum of its proper divisors (1809543591).

3928031109 is a wasteful number, since it uses less digits than its factorization.

3928031109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4904004 (or 4904001 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 3928031109 is about 62674.0066454986. The cubic root of 3928031109 is about 1577.8230861340.

The spelling of 3928031109 in words is "three billion, nine hundred twenty-eight million, thirty-one thousand, one hundred nine".