752749 has 4 divisors (see below), whose sum is σ = 756000. Its totient is φ = 749500.

The previous prime is 752747. The next prime is 752771. The reversal of 752749 is 947257.

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: 947257 = 17 ⋅55721.

It is a cyclic number.

It is not a de Polignac number, because 752749 - 2¹ = 752747 is a prime.

It is a Duffinian number.

752749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (752747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1249 + ... + 1750.

It is an arithmetic number, because the mean of its divisors is an integer number (189000).

2⁷⁵²⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

752749 is a deficient number, since it is larger than the sum of its proper divisors (3251).

752749 is a wasteful number, since it uses less digits than its factorization.

752749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250.

The product of its digits is 17640, while the sum is 34.

The square root of 752749 is about 867.6110879882. The cubic root of 752749 is about 90.9669001706.

The spelling of 752749 in words is "seven hundred fifty-two thousand, seven hundred forty-nine".