3928968187 has 2 divisors, whose sum is σ = 3928968188. Its totient is φ = 3928968186.

The previous prime is 3928968161. The next prime is 3928968191. The reversal of 3928968187 is 7818698293.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3928968187 - 2¹⁵ = 3928935419 is a prime.

It is not a weakly prime, because it can be changed into another prime (3928968287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1964484093 + 1964484094.

It is an arithmetic number, because the mean of its divisors is an integer number (1964484094).

Almost surely, 2^3928968187 is an apocalyptic number.

3928968187 is a deficient number, since it is larger than the sum of its proper divisors (1).

3928968187 is an equidigital number, since it uses as much as digits as its factorization.

3928968187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10450944, while the sum is 61.

The square root of 3928968187 is about 62681.4820102397. The cubic root of 3928968187 is about 1577.9485455734.

The spelling of 3928968187 in words is "three billion, nine hundred twenty-eight million, nine hundred sixty-eight thousand, one hundred eighty-seven".