705248273 has 4 divisors (see below), whose sum is σ = 705888768. Its totient is φ = 704607780.

The previous prime is 705248237. The next prime is 705248279. The reversal of 705248273 is 372842507.

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: 372842507 = 173 ⋅2155159.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-705248273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (705248279) 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 3 ways as a sum of consecutive naturals, for example, 318593 + ... + 320798.

It is an arithmetic number, because the mean of its divisors is an integer number (176472192).

Almost surely, 2^705248273 is an apocalyptic number.

It is an amenable number.

705248273 is a deficient number, since it is larger than the sum of its proper divisors (640495).

705248273 is a wasteful number, since it uses less digits than its factorization.

705248273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640494.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 705248273 is about 26556.5109342323. The cubic root of 705248273 is about 890.1175087868.

The spelling of 705248273 in words is "seven hundred five million, two hundred forty-eight thousand, two hundred seventy-three".