1936947079 has 2 divisors, whose sum is σ = 1936947080. Its totient is φ = 1936947078.

The previous prime is 1936947029. The next prime is 1936947097. The reversal of 1936947079 is 9707496391.

Together with next prime (1936947097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1936947079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1936947029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 968473539 + 968473540.

It is an arithmetic number, because the mean of its divisors is an integer number (968473540).

Almost surely, 2^1936947079 is an apocalyptic number.

1936947079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1936947079 is an equidigital number, since it uses as much as digits as its factorization.

1936947079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2571912, while the sum is 55.

The square root of 1936947079 is about 44010.7609454779. The cubic root of 1936947079 is about 1246.5391369716.

The spelling of 1936947079 in words is "one billion, nine hundred thirty-six million, nine hundred forty-seven thousand, seventy-nine".