7944294187 has 2 divisors, whose sum is σ = 7944294188. Its totient is φ = 7944294186.

The previous prime is 7944294167. The next prime is 7944294203. The reversal of 7944294187 is 7814924497.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7944294187 - 2²⁷ = 7810076459 is a prime.

It is a super-4 number, since 4×7944294187⁴ (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (7944294167) 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 as a sum of consecutive naturals, namely, 3972147093 + 3972147094.

It is an arithmetic number, because the mean of its divisors is an integer number (3972147094).

Almost surely, 2^7944294187 is an apocalyptic number.

7944294187 is a deficient number, since it is larger than the sum of its proper divisors (1).

7944294187 is an equidigital number, since it uses as much as digits as its factorization.

7944294187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 55.

The square root of 7944294187 is about 89130.7701470149. The cubic root of 7944294187 is about 1995.3470322570.

The spelling of 7944294187 in words is "seven billion, nine hundred forty-four million, two hundred ninety-four thousand, one hundred eighty-seven".