3928968193 has 4 divisors (see below), whose sum is σ = 3932486740. Its totient is φ = 3925449648.

The previous prime is 3928968191. The next prime is 3928968233. The reversal of 3928968193 is 3918698293.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1965326224 + 1963641969 = 44332^2 + 44313^2 .

It is a cyclic number.

It is not a de Polignac number, because 3928968193 - 2¹ = 3928968191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3928968191) 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, 1757598 + ... + 1759831.

It is an arithmetic number, because the mean of its divisors is an integer number (983121685).

Almost surely, 2^3928968193 is an apocalyptic number.

It is an amenable number.

3928968193 is a deficient number, since it is larger than the sum of its proper divisors (3518547).

3928968193 is a wasteful number, since it uses less digits than its factorization.

3928968193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518546.

The product of its digits is 5038848, while the sum is 58.

The square root of 3928968193 is about 62681.4820581007. The cubic root of 3928968193 is about 1577.9485463766.

The spelling of 3928968193 in words is "three billion, nine hundred twenty-eight million, nine hundred sixty-eight thousand, one hundred ninety-three".