756745 has 8 divisors (see below), whose sum is σ = 990720. Its totient is φ = 550320.

The previous prime is 756739. The next prime is 756773. The reversal of 756745 is 547657.

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

It is not a de Polignac number, because 756745 - 2¹⁵ = 723977 is a prime.

756745 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 756745.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6825 + ... + 6934.

It is an arithmetic number, because the mean of its divisors is an integer number (123840).

2⁷⁵⁶⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

756745 is a deficient number, since it is larger than the sum of its proper divisors (233975).

756745 is a wasteful number, since it uses less digits than its factorization.

756745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13775.

The product of its digits is 29400, while the sum is 34.

The square root of 756745 is about 869.9109149792. The cubic root of 756745 is about 91.1275833901.

The spelling of 756745 in words is "seven hundred fifty-six thousand, seven hundred forty-five".