755993 has 4 divisors (see below), whose sum is σ = 864000. Its totient is φ = 647988.

The previous prime is 755977. The next prime is 756011. The reversal of 755993 is 399557.

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.

It is a cyclic number.

It is not a de Polignac number, because 755993 - 2⁴ = 755977 is a prime.

It is an Ulam number.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 53993 + ... + 54006.

It is an arithmetic number, because the mean of its divisors is an integer number (216000).

2⁷⁵⁵⁹⁹³ is an apocalyptic number.

It is an amenable number.

755993 is a deficient number, since it is larger than the sum of its proper divisors (108007).

755993 is a wasteful number, since it uses less digits than its factorization.

755993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108006.

The product of its digits is 42525, while the sum is 38.

The square root of 755993 is about 869.4785793796. The cubic root of 755993 is about 91.0973879898.

The spelling of 755993 in words is "seven hundred fifty-five thousand, nine hundred ninety-three".