705639733 has 4 divisors (see below), whose sum is σ = 706512780. Its totient is φ = 704766688.

The previous prime is 705639719. The next prime is 705639743. The reversal of 705639733 is 337936507.

705639733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 660387204 + 45252529 = 25698^2 + 6727^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-705639733 is a prime.

It is a super-2 number, since 2×705639733² = 995854865576622578, which contains 22 as substring.

It is a house number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 705639733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705639743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435310 + ... + 436927.

It is an arithmetic number, because the mean of its divisors is an integer number (176628195).

Almost surely, 2^705639733 is an apocalyptic number.

It is an amenable number.

705639733 is a deficient number, since it is larger than the sum of its proper divisors (873047).

705639733 is an equidigital number, since it uses as much as digits as its factorization.

705639733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873046.

The product of its (nonzero) digits is 357210, while the sum is 43.

The square root of 705639733 is about 26563.8802323757. The cubic root of 705639733 is about 890.2821699249.

The spelling of 705639733 in words is "seven hundred five million, six hundred thirty-nine thousand, seven hundred thirty-three".