756880745 has 4 divisors (see below), whose sum is σ = 908256900. Its totient is φ = 605504592.

The previous prime is 756880739. The next prime is 756880753. The reversal of 756880745 is 547088657.

756880745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 547088657 = 2081 ⋅262897.

It can be written as a sum of positive squares in 2 ways, for example, as 232837081 + 524043664 = 15259^2 + 22892^2 .

It is a cyclic number.

It is not a de Polignac number, because 756880745 - 2⁸ = 756880489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 756880693 and 756880702.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75688070 + ... + 75688079.

It is an arithmetic number, because the mean of its divisors is an integer number (227064225).

Almost surely, 2^756880745 is an apocalyptic number.

It is an amenable number.

756880745 is a deficient number, since it is larger than the sum of its proper divisors (151376155).

756880745 is a wasteful number, since it uses less digits than its factorization.

756880745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151376154.

The product of its (nonzero) digits is 1881600, while the sum is 50.

The square root of 756880745 is about 27511.4657006856. The cubic root of 756880745 is about 911.3303188957.

The spelling of 756880745 in words is "seven hundred fifty-six million, eight hundred eighty thousand, seven hundred forty-five".