755749 has 4 divisors (see below), whose sum is σ = 780160. Its totient is φ = 731340.

The previous prime is 755737. The next prime is 755759. The reversal of 755749 is 947557.

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: 947557 = 13 ⋅72889.

It is a cyclic number.

It is not a de Polignac number, because 755749 - 2⁵ = 755717 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (755719) 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, 12159 + ... + 12220.

It is an arithmetic number, because the mean of its divisors is an integer number (195040).

2⁷⁵⁵⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

755749 is a deficient number, since it is larger than the sum of its proper divisors (24411).

755749 is a wasteful number, since it uses less digits than its factorization.

755749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24410.

The product of its digits is 44100, while the sum is 37.

The square root of 755749 is about 869.3382540761. The cubic root of 755749 is about 91.0875862436.

The spelling of 755749 in words is "seven hundred fifty-five thousand, seven hundred forty-nine".