755349709 has 4 divisors (see below), whose sum is σ = 775764604. Its totient is φ = 734934816.

The previous prime is 755349677. The next prime is 755349733. The reversal of 755349709 is 907943557.

755349709 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 288660100 + 466689609 = 16990^2 + 21603^2 .

It is a cyclic number.

It is not a de Polignac number, because 755349709 - 2⁵ = 755349677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (755349209) 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, 10207392 + ... + 10207465.

It is an arithmetic number, because the mean of its divisors is an integer number (193941151).

Almost surely, 2^755349709 is an apocalyptic number.

It is an amenable number.

755349709 is a deficient number, since it is larger than the sum of its proper divisors (20414895).

755349709 is a wasteful number, since it uses less digits than its factorization.

755349709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20414894.

The product of its (nonzero) digits is 1190700, while the sum is 49.

The square root of 755349709 is about 27483.6261981566. The cubic root of 755349709 is about 910.7154173650.

It can be divided in two parts, 755 and 349709, that added together give a square (350464 = 592²).

The spelling of 755349709 in words is "seven hundred fifty-five million, three hundred forty-nine thousand, seven hundred nine".