756056447 has 2 divisors, whose sum is σ = 756056448. Its totient is φ = 756056446.

The previous prime is 756056377. The next prime is 756056449. The reversal of 756056447 is 744650657.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 756056447 - 2²⁰ = 755007871 is a prime.

Together with 756056449, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 756056398 and 756056407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (756056449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 378028223 + 378028224.

It is an arithmetic number, because the mean of its divisors is an integer number (378028224).

Almost surely, 2^756056447 is an apocalyptic number.

756056447 is a deficient number, since it is larger than the sum of its proper divisors (1).

756056447 is an equidigital number, since it uses as much as digits as its factorization.

756056447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 44.

The square root of 756056447 is about 27496.4806293460. The cubic root of 756056447 is about 910.9993637944. Note that the first 3 decimals are identical.

The spelling of 756056447 in words is "seven hundred fifty-six million, fifty-six thousand, four hundred forty-seven".