705453871 has 2 divisors, whose sum is σ = 705453872. Its totient is φ = 705453870.

The previous prime is 705453817. The next prime is 705453919. The reversal of 705453871 is 178354507.

Together with previous prime (705453817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (178354507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 705453871 - 2²⁹ = 168582959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (705451871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352726935 + 352726936.

It is an arithmetic number, because the mean of its divisors is an integer number (352726936).

Almost surely, 2^705453871 is an apocalyptic number.

705453871 is a deficient number, since it is larger than the sum of its proper divisors (1).

705453871 is an equidigital number, since it uses as much as digits as its factorization.

705453871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 705453871 is about 26560.3816049393. The cubic root of 705453871 is about 890.2039977609.

The spelling of 705453871 in words is "seven hundred five million, four hundred fifty-three thousand, eight hundred seventy-one".