705677249 has 4 divisors (see below), whose sum is σ = 709619760. Its totient is φ = 701734740.

The previous prime is 705677243. The next prime is 705677279. The reversal of 705677249 is 942776507.

705677249 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 942776507 = 1759 ⋅535973.

It is a cyclic number.

It is not a de Polignac number, because 705677249 - 2¹⁶ = 705611713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705677243) 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, 1970987 + ... + 1971344.

It is an arithmetic number, because the mean of its divisors is an integer number (177404940).

Almost surely, 2^705677249 is an apocalyptic number.

It is an amenable number.

705677249 is a deficient number, since it is larger than the sum of its proper divisors (3942511).

705677249 is a wasteful number, since it uses less digits than its factorization.

705677249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942510.

The product of its (nonzero) digits is 740880, while the sum is 47.

The square root of 705677249 is about 26564.5863698270. The cubic root of 705677249 is about 890.2979472082.

The spelling of 705677249 in words is "seven hundred five million, six hundred seventy-seven thousand, two hundred forty-nine".