750729 has 12 divisors (see below), whose sum is σ = 1164624. Its totient is φ = 428904.

The previous prime is 750721. The next prime is 750749. The reversal of 750729 is 927057.

It is a happy number.

750729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 750729 - 2³ = 750721 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 750696 and 750705.

It is not an unprimeable number, because it can be changed into a prime (750721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2407 + ... + 2700.

It is an arithmetic number, because the mean of its divisors is an integer number (97052).

2⁷⁵⁰⁷²⁹ is an apocalyptic number.

It is an amenable number.

750729 is a deficient number, since it is larger than the sum of its proper divisors (413895).

750729 is a wasteful number, since it uses less digits than its factorization.

750729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5124 (or 5117 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 30.

The square root of 750729 is about 866.4461899045. The cubic root of 750729 is about 90.8854574627.

The spelling of 750729 in words is "seven hundred fifty thousand, seven hundred twenty-nine".