705841879 has 2 divisors, whose sum is σ = 705841880. Its totient is φ = 705841878.

The previous prime is 705841841. The next prime is 705841931. The reversal of 705841879 is 978148507.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 705841879 - 2¹⁷ = 705710807 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (705841979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352920939 + 352920940.

It is an arithmetic number, because the mean of its divisors is an integer number (352920940).

Almost surely, 2^705841879 is an apocalyptic number.

705841879 is a deficient number, since it is larger than the sum of its proper divisors (1).

705841879 is an equidigital number, since it uses as much as digits as its factorization.

705841879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 49.

The square root of 705841879 is about 26567.6848633824. The cubic root of 705841879 is about 890.3671754353.

The spelling of 705841879 in words is "seven hundred five million, eight hundred forty-one thousand, eight hundred seventy-nine".