2705430391 has 2 divisors, whose sum is σ = 2705430392. Its totient is φ = 2705430390.

The previous prime is 2705430383. The next prime is 2705430397. The reversal of 2705430391 is 1930345072.

2705430391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2705430391 - 2³ = 2705430383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2705430397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1352715195 + 1352715196.

It is an arithmetic number, because the mean of its divisors is an integer number (1352715196).

Almost surely, 2^2705430391 is an apocalyptic number.

2705430391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2705430391 is an equidigital number, since it uses as much as digits as its factorization.

2705430391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 2705430391 is about 52013.7519411934. The cubic root of 2705430391 is about 1393.4095672228.

The spelling of 2705430391 in words is "two billion, seven hundred five million, four hundred thirty thousand, three hundred ninety-one".