755905 has 8 divisors (see below), whose sum is σ = 960552. Its totient is φ = 569088.

The previous prime is 755903. The next prime is 755959. The reversal of 755905 is 509557.

It can be written as a sum of positive squares in 4 ways, for example, as 51984 + 703921 = 228^2 + 839^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 755905 - 2¹ = 755903 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 (755903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4362 + ... + 4531.

It is an arithmetic number, because the mean of its divisors is an integer number (120069).

2⁷⁵⁵⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

755905 is a deficient number, since it is larger than the sum of its proper divisors (204647).

755905 is a wasteful number, since it uses less digits than its factorization.

755905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8915.

The product of its (nonzero) digits is 7875, while the sum is 31.

The square root of 755905 is about 869.4279728649. The cubic root of 755905 is about 91.0938531769.

The spelling of 755905 in words is "seven hundred fifty-five thousand, nine hundred five".