705507849 has 12 divisors (see below), whose sum is σ = 1020690112. Its totient is φ = 469589400.

The previous prime is 705507839. The next prime is 705507851. The reversal of 705507849 is 948705507.

It is not a de Polignac number, because 705507849 - 2⁷ = 705507721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705507809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56437 + ... + 67794.

Almost surely, 2^705507849 is an apocalyptic number.

It is an amenable number.

705507849 is a deficient number, since it is larger than the sum of its proper divisors (315182263).

705507849 is a wasteful number, since it uses less digits than its factorization.

705507849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124868 (or 124865 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 705507849 is about 26561.3977230115. The cubic root of 705507849 is about 890.2267019177.

The spelling of 705507849 in words is "seven hundred five million, five hundred seven thousand, eight hundred forty-nine".