705748671 has 12 divisors (see below), whose sum is σ = 1020062472. Its totient is φ = 470200176.

The previous prime is 705748661. The next prime is 705748679. The reversal of 705748671 is 176847507.

705748671 is a `hidden beast` number, since 7 + 0 + 574 + 8 + 6 + 71 = 666.

It is not a de Polignac number, because 705748671 - 2⁵ = 705748639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705748679) 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 in 11 ways as a sum of consecutive naturals, for example, 9456 + ... + 38741.

It is an arithmetic number, because the mean of its divisors is an integer number (85005206).

Almost surely, 2^705748671 is an apocalyptic number.

705748671 is a deficient number, since it is larger than the sum of its proper divisors (314313801).

705748671 is a wasteful number, since it uses less digits than its factorization.

705748671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49830 (or 49827 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The square root of 705748671 is about 26565.9306443422. The cubic root of 705748671 is about 890.3279820506.

The spelling of 705748671 in words is "seven hundred five million, seven hundred forty-eight thousand, six hundred seventy-one".