705949 has 2 divisors, whose sum is σ = 705950. Its totient is φ = 705948.

The previous prime is 705937. The next prime is 705967. The reversal of 705949 is 949507.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448900 + 257049 = 670^2 + 507^2 .

It is a cyclic number.

It is not a de Polignac number, because 705949 - 2⁷ = 705821 is a prime.

705949 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (705919) 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 as a sum of consecutive naturals, namely, 352974 + 352975.

It is an arithmetic number, because the mean of its divisors is an integer number (352975).

2⁷⁰⁵⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

705949 is a deficient number, since it is larger than the sum of its proper divisors (1).

705949 is an equidigital number, since it uses as much as digits as its factorization.

705949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 705949 is about 840.2077124140. The cubic root of 705949 is about 89.0412214889.

The spelling of 705949 in words is "seven hundred five thousand, nine hundred forty-nine".